diff --git a/src/saveload/linkgraph_sl.cpp b/src/saveload/linkgraph_sl.cpp
--- a/src/saveload/linkgraph_sl.cpp
+++ b/src/saveload/linkgraph_sl.cpp
@@ -53,11 +53,23 @@ const SaveLoad *GetLinkGraphJobDesc()
 	static std::vector<SaveLoad> saveloads;
 	static const char *prefix = "linkgraph.";
 
+	static const SaveLoad job_desc[] = {
+		SLE_VAR(LinkGraphJob, join_date,        SLE_INT32),
+		SLE_VAR(LinkGraphJob, link_graph.index, SLE_UINT16),
+		SLE_END()
+	};
+
+	/* The member offset arithmetic below is only valid if the types in question
+	 * are standard layout types. Otherwise, it would be undefined behaviour. */
+	static_assert(std::is_standard_layout<LinkGraphSettings>::value, "LinkGraphSettings needs to be a standard layout type");
+
+	/* We store the offset of each member of the #LinkGraphSettings in the
+	 * extra data of the saveload struct. Use it together with the address
+	 * of the settings struct inside the job to find the final memory address. */
+	static SaveLoadAddrProc * const proc = [](void *b, size_t extra) -> void * { return const_cast<void *>(static_cast<const void *>(reinterpret_cast<const char *>(std::addressof(static_cast<LinkGraphJob *>(b)->settings)) + extra)); };
+
 	/* Build the SaveLoad array on first call and don't touch it later on */
 	if (saveloads.size() == 0) {
-		size_t offset_gamesettings = cpp_offsetof(GameSettings, linkgraph);
-		size_t offset_component = cpp_offsetof(LinkGraphJob, settings);
-
 		size_t prefixlen = strlen(prefix);
 
 		int setting = 0;
@@ -65,20 +77,12 @@ const SaveLoad *GetLinkGraphJobDesc()
 		while (desc->save.cmd != SL_END) {
 			if (desc->desc.name != nullptr && strncmp(desc->desc.name, prefix, prefixlen) == 0) {
 				SaveLoad sl = desc->save;
-				char *&address = reinterpret_cast<char *&>(sl.address);
-				address -= offset_gamesettings;
-				address += offset_component;
+				sl.address_proc = proc;
 				saveloads.push_back(sl);
 			}
 			desc = GetSettingDescription(++setting);
 		}
 
-		const SaveLoad job_desc[] = {
-			SLE_VAR(LinkGraphJob, join_date,        SLE_INT32),
-			SLE_VAR(LinkGraphJob, link_graph.index, SLE_UINT16),
-			SLE_END()
-		};
-
 		int i = 0;
 		do {
 			saveloads.push_back(job_desc[i++]);
diff --git a/src/saveload/saveload.h b/src/saveload/saveload.h
--- a/src/saveload/saveload.h
+++ b/src/saveload/saveload.h
@@ -385,10 +385,6 @@ struct ChunkHandler {
 	uint32 flags;                       ///< Flags of the chunk. @see ChunkType
 };
 
-struct NullStruct {
-	byte null;
-};
-
 /** Type of reference (#SLE_REF, #SLE_CONDREF). */
 enum SLRefType {
 	REF_ORDER          =  0, ///< Load/save a reference to an order.
@@ -499,7 +495,7 @@ enum VarTypes {
 typedef uint32 VarType;
 
 /** Type of data saved. */
-enum SaveLoadTypes {
+enum SaveLoadType : byte {
 	SL_VAR         =  0, ///< Save/load a variable.
 	SL_REF         =  1, ///< Save/load a reference.
 	SL_ARR         =  2, ///< Save/load an array.
@@ -514,22 +510,18 @@ enum SaveLoadTypes {
 	SL_END         = 15
 };
 
-typedef byte SaveLoadType; ///< Save/load type. @see SaveLoadTypes
+typedef void *SaveLoadAddrProc(void *base, size_t extra);
 
 /** SaveLoad type struct. Do NOT use this directly but use the SLE_ macros defined just below! */
 struct SaveLoad {
-	bool global;         ///< should we load a global variable or a non-global one
 	SaveLoadType cmd;    ///< the action to take with the saved/loaded type, All types need different action
 	VarType conv;        ///< type of the variable to be saved, int
 	uint16 length;       ///< (conditional) length of the variable (eg. arrays) (max array size is 65536 elements)
-	SaveLoadVersion version_from; ///< save/load the variable starting from this savegame version
-	SaveLoadVersion version_to;   ///< save/load the variable until this savegame version
-	/* NOTE: This element either denotes the address of the variable for a global
-	 * variable, or the offset within a struct which is then bound to a variable
-	 * during runtime. Decision on which one to use is controlled by the function
-	 * that is called to save it. address: global=true, offset: global=false */
-	void *address;       ///< address of variable OR offset of variable in the struct (max offset is 65536)
-	size_t size;         ///< the sizeof size.
+	SaveLoadVersion version_from;   ///< save/load the variable starting from this savegame version
+	SaveLoadVersion version_to;     ///< save/load the variable until this savegame version
+	size_t size;                    ///< the sizeof size.
+	SaveLoadAddrProc *address_proc; ///< callback proc the get the actual variable address in memory
+	size_t extra_data;              ///< extra data for the callback proc
 };
 
 /** Same as #SaveLoad but global variables are used (for better readability); */
@@ -543,9 +535,10 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param type     Storage of the data in memory and in the savegame.
  * @param from     First savegame version that has the field.
  * @param to       Last savegame version that has the field.
+ * @param extra    Extra data to pass to the address callback function.
  * @note In general, it is better to use one of the SLE_* macros below.
  */
-#define SLE_GENERAL(cmd, base, variable, type, length, from, to) {false, cmd, type, length, from, to, (void*)cpp_offsetof(base, variable), cpp_sizeof(base, variable)}
+#define SLE_GENERAL(cmd, base, variable, type, length, from, to, extra) {cmd, type, length, from, to, cpp_sizeof(base, variable), [] (void *b, size_t) -> void * { assert(b != nullptr); return const_cast<void *>(static_cast<const void *>(std::addressof(static_cast<base *>(b)->variable))); }, extra}
 
 /**
  * Storage of a variable in some savegame versions.
@@ -555,7 +548,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the field.
  * @param to       Last savegame version that has the field.
  */
-#define SLE_CONDVAR(base, variable, type, from, to) SLE_GENERAL(SL_VAR, base, variable, type, 0, from, to)
+#define SLE_CONDVAR(base, variable, type, from, to) SLE_GENERAL(SL_VAR, base, variable, type, 0, from, to, 0)
 
 /**
  * Storage of a reference in some savegame versions.
@@ -565,7 +558,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the field.
  * @param to       Last savegame version that has the field.
  */
-#define SLE_CONDREF(base, variable, type, from, to) SLE_GENERAL(SL_REF, base, variable, type, 0, from, to)
+#define SLE_CONDREF(base, variable, type, from, to) SLE_GENERAL(SL_REF, base, variable, type, 0, from, to, 0)
 
 /**
  * Storage of an array in some savegame versions.
@@ -576,7 +569,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the array.
  * @param to       Last savegame version that has the array.
  */
-#define SLE_CONDARR(base, variable, type, length, from, to) SLE_GENERAL(SL_ARR, base, variable, type, length, from, to)
+#define SLE_CONDARR(base, variable, type, length, from, to) SLE_GENERAL(SL_ARR, base, variable, type, length, from, to, 0)
 
 /**
  * Storage of a string in some savegame versions.
@@ -587,7 +580,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the string.
  * @param to       Last savegame version that has the string.
  */
-#define SLE_CONDSTR(base, variable, type, length, from, to) SLE_GENERAL(SL_STR, base, variable, type, length, from, to)
+#define SLE_CONDSTR(base, variable, type, length, from, to) SLE_GENERAL(SL_STR, base, variable, type, length, from, to, 0)
 
 /**
  * Storage of a \c std::string in some savegame versions.
@@ -597,7 +590,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the string.
  * @param to       Last savegame version that has the string.
  */
-#define SLE_CONDSSTR(base, variable, type, from, to) SLE_GENERAL(SL_STDSTR, base, variable, type, 0, from, to)
+#define SLE_CONDSSTR(base, variable, type, from, to) SLE_GENERAL(SL_STDSTR, base, variable, type, 0, from, to, 0)
 
 /**
  * Storage of a list in some savegame versions.
@@ -607,7 +600,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the list.
  * @param to       Last savegame version that has the list.
  */
-#define SLE_CONDLST(base, variable, type, from, to) SLE_GENERAL(SL_LST, base, variable, type, 0, from, to)
+#define SLE_CONDLST(base, variable, type, from, to) SLE_GENERAL(SL_LST, base, variable, type, 0, from, to, 0)
 
 /**
  * Storage of a deque in some savegame versions.
@@ -617,7 +610,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the list.
  * @param to       Last savegame version that has the list.
  */
-#define SLE_CONDDEQUE(base, variable, type, from, to) SLE_GENERAL(SL_DEQUE, base, variable, type, 0, from, to)
+#define SLE_CONDDEQUE(base, variable, type, from, to) SLE_GENERAL(SL_DEQUE, base, variable, type, 0, from, to, 0)
 
 /**
  * Storage of a variable in every version of a savegame.
@@ -681,16 +674,16 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from   First savegame version that has the empty space.
  * @param to     Last savegame version that has the empty space.
  */
-#define SLE_CONDNULL(length, from, to) SLE_CONDARR(NullStruct, null, SLE_FILE_U8 | SLE_VAR_NULL | SLF_NOT_IN_CONFIG, length, from, to)
+#define SLE_CONDNULL(length, from, to) {SL_ARR, SLE_FILE_U8 | SLE_VAR_NULL | SLF_NOT_IN_CONFIG, length, from, to, 0, nullptr, 0}
 
 /** Translate values ingame to different values in the savegame and vv. */
-#define SLE_WRITEBYTE(base, variable) SLE_GENERAL(SL_WRITEBYTE, base, variable, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION)
+#define SLE_WRITEBYTE(base, variable) SLE_GENERAL(SL_WRITEBYTE, base, variable, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION, 0)
 
-#define SLE_VEH_INCLUDE() {false, SL_VEH_INCLUDE, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION, nullptr, 0}
-#define SLE_ST_INCLUDE() {false, SL_ST_INCLUDE, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION, nullptr, 0}
+#define SLE_VEH_INCLUDE() {SL_VEH_INCLUDE, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION, 0, [] (void *b, size_t) { return b; }, 0}
+#define SLE_ST_INCLUDE() {SL_ST_INCLUDE, 0, 0, SL_MIN_VERSION, SL_MAX_VERSION, 0, [] (void *b, size_t) { return b; }, 0}
 
 /** End marker of a struct/class save or load. */
-#define SLE_END() {false, SL_END, 0, 0, SL_MIN_VERSION, SL_MIN_VERSION, nullptr, 0}
+#define SLE_END() {SL_END, 0, 0, SL_MIN_VERSION, SL_MIN_VERSION, 0, nullptr, 0}
 
 /**
  * Storage of global simple variables, references (pointers), and arrays.
@@ -699,9 +692,10 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param type     Storage of the data in memory and in the savegame.
  * @param from     First savegame version that has the field.
  * @param to       Last savegame version that has the field.
+ * @param extra    Extra data to pass to the address callback function.
  * @note In general, it is better to use one of the SLEG_* macros below.
  */
-#define SLEG_GENERAL(cmd, variable, type, length, from, to) {true, cmd, type, length, from, to, (void*)&variable, sizeof(variable)}
+#define SLEG_GENERAL(cmd, variable, type, length, from, to, extra) {cmd, type, length, from, to, sizeof(variable), [] (void *, size_t) -> void * { return static_cast<void *>(std::addressof(variable)); }, extra}
 
 /**
  * Storage of a global variable in some savegame versions.
@@ -710,7 +704,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the field.
  * @param to       Last savegame version that has the field.
  */
-#define SLEG_CONDVAR(variable, type, from, to) SLEG_GENERAL(SL_VAR, variable, type, 0, from, to)
+#define SLEG_CONDVAR(variable, type, from, to) SLEG_GENERAL(SL_VAR, variable, type, 0, from, to, 0)
 
 /**
  * Storage of a global reference in some savegame versions.
@@ -719,7 +713,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the field.
  * @param to       Last savegame version that has the field.
  */
-#define SLEG_CONDREF(variable, type, from, to) SLEG_GENERAL(SL_REF, variable, type, 0, from, to)
+#define SLEG_CONDREF(variable, type, from, to) SLEG_GENERAL(SL_REF, variable, type, 0, from, to, 0)
 
 /**
  * Storage of a global array in some savegame versions.
@@ -729,7 +723,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the array.
  * @param to       Last savegame version that has the array.
  */
-#define SLEG_CONDARR(variable, type, length, from, to) SLEG_GENERAL(SL_ARR, variable, type, length, from, to)
+#define SLEG_CONDARR(variable, type, length, from, to) SLEG_GENERAL(SL_ARR, variable, type, length, from, to, 0)
 
 /**
  * Storage of a global string in some savegame versions.
@@ -739,7 +733,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the string.
  * @param to       Last savegame version that has the string.
  */
-#define SLEG_CONDSTR(variable, type, length, from, to) SLEG_GENERAL(SL_STR, variable, type, length, from, to)
+#define SLEG_CONDSTR(variable, type, length, from, to) SLEG_GENERAL(SL_STR, variable, type, length, from, to, 0)
 
 /**
  * Storage of a global \c std::string in some savegame versions.
@@ -748,7 +742,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the string.
  * @param to       Last savegame version that has the string.
  */
-#define SLEG_CONDSSTR(variable, type, from, to) SLEG_GENERAL(SL_STDSTR, variable, type, 0, from, to)
+#define SLEG_CONDSSTR(variable, type, from, to) SLEG_GENERAL(SL_STDSTR, variable, type, 0, from, to, 0)
 
 /**
  * Storage of a global list in some savegame versions.
@@ -757,7 +751,7 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from     First savegame version that has the list.
  * @param to       Last savegame version that has the list.
  */
-#define SLEG_CONDLST(variable, type, from, to) SLEG_GENERAL(SL_LST, variable, type, 0, from, to)
+#define SLEG_CONDLST(variable, type, from, to) SLEG_GENERAL(SL_LST, variable, type, 0, from, to, 0)
 
 /**
  * Storage of a global variable in every savegame version.
@@ -807,10 +801,10 @@ typedef SaveLoad SaveLoadGlobVarList;
  * @param from   First savegame version that has the empty space.
  * @param to     Last savegame version that has the empty space.
  */
-#define SLEG_CONDNULL(length, from, to) {true, SL_ARR, SLE_FILE_U8 | SLE_VAR_NULL | SLF_NOT_IN_CONFIG, length, from, to, (void*)nullptr}
+#define SLEG_CONDNULL(length, from, to) {SL_ARR, SLE_FILE_U8 | SLE_VAR_NULL | SLF_NOT_IN_CONFIG, length, from, to, 0, nullptr, 0}
 
 /** End marker of global variables save or load. */
-#define SLEG_END() {true, SL_END, 0, 0, SL_MIN_VERSION, SL_MIN_VERSION, nullptr, 0}
+#define SLEG_END() {SL_END, 0, 0, SL_MIN_VERSION, SL_MIN_VERSION, 0, nullptr, 0}
 
 /**
  * Checks whether the savegame is below \a major.\a minor.
@@ -886,25 +880,21 @@ static inline bool IsNumericType(VarType
 }
 
 /**
- * Get the address of the variable. Which one to pick depends on the object
- * pointer. If it is nullptr we are dealing with global variables so the address
- * is taken. If non-null only the offset is stored in the union and we need
- * to add this to the address of the object
+ * Get the address of the variable. Null-variables don't have an address,
+ * everything else has a callback function that returns the address based
+ * on the saveload data and the current object for non-globals.
  */
 static inline void *GetVariableAddress(const void *object, const SaveLoad *sld)
 {
-	/* Entry is a global address. */
-	if (sld->global) return sld->address;
-
 	/* Entry is a null-variable, mostly used to read old savegames etc. */
 	if (GetVarMemType(sld->conv) == SLE_VAR_NULL) {
-		assert(sld->address == nullptr);
+		assert(sld->address_proc == nullptr);
 		return nullptr;
 	}
 
 	/* Everything else should be a non-null pointer. */
-	assert(object != nullptr);
-	return const_cast<byte *>((const byte *)object + (ptrdiff_t)sld->address);
+	assert(sld->address_proc != nullptr);
+	return sld->address_proc(const_cast<void *>(object), sld->extra_data);
 }
 
 int64 ReadValue(const void *ptr, VarType conv);
diff --git a/src/table/company_settings.ini b/src/table/company_settings.ini
--- a/src/table/company_settings.ini
+++ b/src/table/company_settings.ini
@@ -16,8 +16,8 @@ static const SettingDesc _company_settin
 [post-amble]
 };
 [templates]
-SDT_BOOL = SDT_BOOL($base, $var,        $flags, $guiflags, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDT_VAR  =  SDT_VAR($base, $var, $type, $flags, $guiflags, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to, $cat),
+SDT_BOOL = SDT_BOOL($base, $var,        $flags, $guiflags, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDT_VAR  =  SDT_VAR($base, $var, $type, $flags, $guiflags, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
 SDT_END  = SDT_END()
 
 [defaults]
@@ -32,6 +32,7 @@ load     = nullptr
 from     = SL_MIN_VERSION
 to       = SL_MAX_VERSION
 cat      = SC_ADVANCED
+extra    = 0
 
 
 
diff --git a/src/table/currency_settings.ini b/src/table/currency_settings.ini
--- a/src/table/currency_settings.ini
+++ b/src/table/currency_settings.ini
@@ -9,9 +9,9 @@ static const SettingDesc _currency_setti
 [post-amble]
 };
 [templates]
-SDT_VAR = SDT_VAR($base, $var, $type, $flags, $guiflags, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDT_CHR = SDT_CHR($base, $var,        $flags, $guiflags, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDT_STR = SDT_STR($base, $var, $type, $flags, $guiflags, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat),
+SDT_VAR = SDT_VAR($base, $var, $type, $flags, $guiflags, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDT_CHR = SDT_CHR($base, $var,        $flags, $guiflags, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDT_STR = SDT_STR($base, $var, $type, $flags, $guiflags, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
 SDT_END = SDT_END()
 
 [defaults]
@@ -26,6 +26,7 @@ load     = nullptr
 from     = SL_MIN_VERSION
 to       = SL_MAX_VERSION
 cat      = SC_ADVANCED
+extra    = 0
 
 
 
diff --git a/src/table/gameopt_settings.ini b/src/table/gameopt_settings.ini
--- a/src/table/gameopt_settings.ini
+++ b/src/table/gameopt_settings.ini
@@ -37,13 +37,13 @@ static const SettingDesc _gameopt_settin
 [post-amble]
 };
 [templates]
-SDTG_GENERAL = SDTG_GENERAL($name, $sdt_cmd, $sle_cmd, $type, $flags, $guiflags, $var, $length, $def, $min, $max, $interval, $full, $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDTG_VAR     =     SDTG_VAR($name,                     $type, $flags, $guiflags, $var,          $def, $min, $max, $interval,        $str, $strhelp, $strval, $proc, $from, $to, $cat),
+SDTG_GENERAL = SDTG_GENERAL($name, $sdt_cmd, $sle_cmd, $type, $flags, $guiflags, $var, $length, $def, $min, $max, $interval, $full, $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDTG_VAR     =     SDTG_VAR($name,                     $type, $flags, $guiflags, $var,          $def, $min, $max, $interval,        $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
 SDT_NULL     =   SDT_NULL($length, $from, $to),
-SDTC_OMANY   = SDTC_OMANY(       $var, $type, $flags, $guiflags, $def,       $max, $full,            $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDTG_OMANY   = SDTG_OMANY($name,       $type, $flags, $guiflags, $var, $def, $max, $full,            $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDT_OMANY    =  SDT_OMANY($base, $var, $type, $flags, $guiflags, $def,       $max, $full,            $str, $strhelp, $strval, $proc, $from, $to, $load, $cat),
-SDT_VAR      =    SDT_VAR($base, $var, $type, $flags, $guiflags, $def, $min, $max,        $interval, $str, $strhelp, $strval, $proc, $from, $to,        $cat),
+SDTC_OMANY   = SDTC_OMANY(       $var, $type, $flags, $guiflags, $def,       $max, $full,            $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDTG_OMANY   = SDTG_OMANY($name,       $type, $flags, $guiflags, $var, $def, $max, $full,            $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDT_OMANY    =  SDT_OMANY($base, $var, $type, $flags, $guiflags, $def,       $max, $full,            $str, $strhelp, $strval, $proc, $from, $to, $load, $cat, $extra),
+SDT_VAR      =    SDT_VAR($base, $var, $type, $flags, $guiflags, $def, $min, $max,        $interval, $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
 SDT_END      = SDT_END()
 
 [defaults]
@@ -58,6 +58,7 @@ load     = nullptr
 from     = SL_MIN_VERSION
 to       = SL_MAX_VERSION
 cat      = SC_ADVANCED
+extra    = 0
 
 
 
diff --git a/src/table/misc_settings.ini b/src/table/misc_settings.ini
--- a/src/table/misc_settings.ini
+++ b/src/table/misc_settings.ini
@@ -13,13 +13,13 @@ static const SettingDescGlobVarList _mis
 [post-amble]
 };
 [templates]
-SDTG_LIST  =  SDTG_LIST($name, $type, $length, $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDTG_MMANY = SDTG_MMANY($name, $type,          $flags, $guiflags, $var, $def,                        $full, $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDTG_OMANY = SDTG_OMANY($name, $type,          $flags, $guiflags, $var, $def,       $max,            $full, $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDTG_STR   =   SDTG_STR($name, $type,          $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDTG_SSTR  =  SDTG_SSTR($name, $type,          $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDTG_BOOL  =  SDTG_BOOL($name,                 $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDTG_VAR   =   SDTG_VAR($name, $type,          $flags, $guiflags, $var, $def, $min, $max, $interval,        $str, $strhelp, $strval, $proc, $from, $to, $cat),
+SDTG_LIST  =  SDTG_LIST($name, $type, $length, $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDTG_MMANY = SDTG_MMANY($name, $type,          $flags, $guiflags, $var, $def,                        $full, $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDTG_OMANY = SDTG_OMANY($name, $type,          $flags, $guiflags, $var, $def,       $max,            $full, $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDTG_STR   =   SDTG_STR($name, $type,          $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDTG_SSTR  =  SDTG_SSTR($name, $type,          $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDTG_BOOL  =  SDTG_BOOL($name,                 $flags, $guiflags, $var, $def,                               $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDTG_VAR   =   SDTG_VAR($name, $type,          $flags, $guiflags, $var, $def, $min, $max, $interval,        $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
 SDTG_END   = SDTG_END()
 
 [defaults]
@@ -34,6 +34,7 @@ load     = nullptr
 from     = SL_MIN_VERSION
 to       = SL_MAX_VERSION
 cat      = SC_ADVANCED
+extra    = 0
 
 
 
diff --git a/src/table/settings.h.preamble b/src/table/settings.h.preamble
--- a/src/table/settings.h.preamble
+++ b/src/table/settings.h.preamble
@@ -61,29 +61,29 @@ static size_t ConvertLandscape(const cha
 
 /* Macros for various objects to go in the configuration file.
  * This section is for global variables */
-#define SDTG_GENERAL(name, sdt_cmd, sle_cmd, type, flags, guiflags, var, length, def, min, max, interval, full, str, strhelp, strval, proc, from, to, cat)\
-	{NSD_GENERAL(name, def, sdt_cmd, guiflags, min, max, interval, full, str, strhelp, strval, proc, nullptr, cat), SLEG_GENERAL(sle_cmd, var, type | flags, length, from, to)}
+#define SDTG_GENERAL(name, sdt_cmd, sle_cmd, type, flags, guiflags, var, length, def, min, max, interval, full, str, strhelp, strval, proc, from, to, cat, extra)\
+	{NSD_GENERAL(name, def, sdt_cmd, guiflags, min, max, interval, full, str, strhelp, strval, proc, nullptr, cat), SLEG_GENERAL(sle_cmd, var, type | flags, length, from, to, extra)}
 
-#define SDTG_VAR(name, type, flags, guiflags, var, def, min, max, interval, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(name, SDT_NUMX, SL_VAR, type, flags, guiflags, var, 0, def, min, max, interval, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTG_VAR(name, type, flags, guiflags, var, def, min, max, interval, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(name, SDT_NUMX, SL_VAR, type, flags, guiflags, var, 0, def, min, max, interval, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTG_BOOL(name, flags, guiflags, var, def, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(name, SDT_BOOLX, SL_VAR, SLE_BOOL, flags, guiflags, var, 0, def, 0, 1, 0, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTG_BOOL(name, flags, guiflags, var, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(name, SDT_BOOLX, SL_VAR, SLE_BOOL, flags, guiflags, var, 0, def, 0, 1, 0, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTG_LIST(name, type, length, flags, guiflags, var, def, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(name, SDT_INTLIST, SL_ARR, type, flags, guiflags, var, length, def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTG_LIST(name, type, length, flags, guiflags, var, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(name, SDT_INTLIST, SL_ARR, type, flags, guiflags, var, length, def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTG_STR(name, type, flags, guiflags, var, def, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(name, SDT_STRING, SL_STR, type, flags, guiflags, var, sizeof(var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTG_STR(name, type, flags, guiflags, var, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(name, SDT_STRING, SL_STR, type, flags, guiflags, var, sizeof(var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTG_SSTR(name, type, flags, guiflags, var, def, str, strhelp, strval, proc, from, to, cat)\
-    SDTG_GENERAL(name, SDT_STDSTRING, SL_STDSTR, type, flags, guiflags, var, sizeof(var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTG_SSTR(name, type, flags, guiflags, var, def, str, strhelp, strval, proc, from, to, cat, extra)\
+    SDTG_GENERAL(name, SDT_STDSTRING, SL_STDSTR, type, flags, guiflags, var, sizeof(var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTG_OMANY(name, type, flags, guiflags, var, def, max, full, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(name, SDT_ONEOFMANY, SL_VAR, type, flags, guiflags, var, 0, def, 0, max, 0, full, str, strhelp, strval, proc, from, to, cat)
+#define SDTG_OMANY(name, type, flags, guiflags, var, def, max, full, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(name, SDT_ONEOFMANY, SL_VAR, type, flags, guiflags, var, 0, def, 0, max, 0, full, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTG_MMANY(name, type, flags, guiflags, var, def, full, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(name, SDT_MANYOFMANY, SL_VAR, type, flags, guiflags, var, 0, def, 0, 0, 0, full, str, strhelp, strval, proc, from, to, cat)
+#define SDTG_MMANY(name, type, flags, guiflags, var, def, full, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(name, SDT_MANYOFMANY, SL_VAR, type, flags, guiflags, var, 0, def, 0, 0, 0, full, str, strhelp, strval, proc, from, to, cat, extra)
 
 #define SDTG_NULL(length, from, to)\
 	{{"", nullptr, SDT_NUMX, SGF_NONE, 0, 0, 0, nullptr, STR_NULL, STR_NULL, STR_NULL, nullptr, nullptr, SC_NONE}, SLEG_NULL(length, from, to)}
@@ -92,48 +92,48 @@ static size_t ConvertLandscape(const cha
 
 /* Macros for various objects to go in the configuration file.
  * This section is for structures where their various members are saved */
-#define SDT_GENERAL(name, sdt_cmd, sle_cmd, type, flags, guiflags, base, var, length, def, min, max, interval, full, str, strhelp, strval, proc, load, from, to, cat)\
-	{NSD_GENERAL(name, def, sdt_cmd, guiflags, min, max, interval, full, str, strhelp, strval, proc, load, cat), SLE_GENERAL(sle_cmd, base, var, type | flags, length, from, to)}
+#define SDT_GENERAL(name, sdt_cmd, sle_cmd, type, flags, guiflags, base, var, length, def, min, max, interval, full, str, strhelp, strval, proc, load, from, to, cat, extra)\
+	{NSD_GENERAL(name, def, sdt_cmd, guiflags, min, max, interval, full, str, strhelp, strval, proc, load, cat), SLE_GENERAL(sle_cmd, base, var, type | flags, length, from, to, extra)}
 
-#define SDT_VAR(base, var, type, flags, guiflags, def, min, max, interval, str, strhelp, strval, proc, from, to, cat)\
-	SDT_GENERAL(#var, SDT_NUMX, SL_VAR, type, flags, guiflags, base, var, 1, def, min, max, interval, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat)
+#define SDT_VAR(base, var, type, flags, guiflags, def, min, max, interval, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDT_GENERAL(#var, SDT_NUMX, SL_VAR, type, flags, guiflags, base, var, 1, def, min, max, interval, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat, extra)
 
-#define SDT_BOOL(base, var, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat)\
-	SDT_GENERAL(#var, SDT_BOOLX, SL_VAR, SLE_BOOL, flags, guiflags, base, var, 1, def, 0, 1, 0, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat)
+#define SDT_BOOL(base, var, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDT_GENERAL(#var, SDT_BOOLX, SL_VAR, SLE_BOOL, flags, guiflags, base, var, 1, def, 0, 1, 0, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat, extra)
 
-#define SDT_LIST(base, var, type, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat)\
-	SDT_GENERAL(#var, SDT_INTLIST, SL_ARR, type, flags, guiflags, base, var, lengthof(((base*)8)->var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat)
+#define SDT_LIST(base, var, type, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDT_GENERAL(#var, SDT_INTLIST, SL_ARR, type, flags, guiflags, base, var, lengthof(((base*)8)->var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat, extra)
 
-#define SDT_STR(base, var, type, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat)\
-	SDT_GENERAL(#var, SDT_STRING, SL_STR, type, flags, guiflags, base, var, sizeof(((base*)8)->var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat)
+#define SDT_STR(base, var, type, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDT_GENERAL(#var, SDT_STRING, SL_STR, type, flags, guiflags, base, var, sizeof(((base*)8)->var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat, extra)
 
-#define SDT_CHR(base, var, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat)\
-	SDT_GENERAL(#var, SDT_STRING, SL_VAR, SLE_CHAR, flags, guiflags, base, var, 1, def, 0, 0, 0, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat)
+#define SDT_CHR(base, var, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDT_GENERAL(#var, SDT_STRING, SL_VAR, SLE_CHAR, flags, guiflags, base, var, 1, def, 0, 0, 0, nullptr, str, strhelp, strval, proc, nullptr, from, to, cat, extra)
 
-#define SDT_OMANY(base, var, type, flags, guiflags, def, max, full, str, strhelp, strval, proc, from, to, load, cat)\
-	SDT_GENERAL(#var, SDT_ONEOFMANY, SL_VAR, type, flags, guiflags, base, var, 1, def, 0, max, 0, full, str, strhelp, strval, proc, load, from, to, cat)
+#define SDT_OMANY(base, var, type, flags, guiflags, def, max, full, str, strhelp, strval, proc, from, to, load, cat, extra)\
+	SDT_GENERAL(#var, SDT_ONEOFMANY, SL_VAR, type, flags, guiflags, base, var, 1, def, 0, max, 0, full, str, strhelp, strval, proc, load, from, to, cat, extra)
 
-#define SDT_MMANY(base, var, type, flags, guiflags, def, full, str, proc, strhelp, strval, from, to, cat)\
-	SDT_GENERAL(#var, SDT_MANYOFMANY, SL_VAR, type, flags, guiflags, base, var, 1, def, 0, 0, 0, full, str, strhelp, strval, proc, nullptr, from, to, cat)
+#define SDT_MMANY(base, var, type, flags, guiflags, def, full, str, proc, strhelp, strval, from, to, cat, extra)\
+	SDT_GENERAL(#var, SDT_MANYOFMANY, SL_VAR, type, flags, guiflags, base, var, 1, def, 0, 0, 0, full, str, strhelp, strval, proc, nullptr, from, to, cat, extra)
 
 #define SDT_NULL(length, from, to)\
 	{{"", nullptr, SDT_NUMX, SGF_NONE, 0, 0, 0, nullptr, STR_NULL, STR_NULL, STR_NULL, nullptr, nullptr, SC_NONE}, SLE_CONDNULL(length, from, to)}
 
 
-#define SDTC_VAR(var, type, flags, guiflags, def, min, max, interval, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(#var, SDT_NUMX, SL_VAR, type, flags, guiflags, _settings_client.var, 1, def, min, max, interval, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTC_VAR(var, type, flags, guiflags, def, min, max, interval, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(#var, SDT_NUMX, SL_VAR, type, flags, guiflags, _settings_client.var, 1, def, min, max, interval, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTC_BOOL(var, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(#var, SDT_BOOLX, SL_VAR, SLE_BOOL, flags, guiflags, _settings_client.var, 1, def, 0, 1, 0, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTC_BOOL(var, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(#var, SDT_BOOLX, SL_VAR, SLE_BOOL, flags, guiflags, _settings_client.var, 1, def, 0, 1, 0, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTC_LIST(var, type, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(#var, SDT_INTLIST, SL_ARR, type, flags, guiflags, _settings_client.var, lengthof(_settings_client.var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTC_LIST(var, type, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(#var, SDT_INTLIST, SL_ARR, type, flags, guiflags, _settings_client.var, lengthof(_settings_client.var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTC_STR(var, type, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(#var, SDT_STRING, SL_STR, type, flags, guiflags, _settings_client.var, sizeof(_settings_client.var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat)
+#define SDTC_STR(var, type, flags, guiflags, def, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(#var, SDT_STRING, SL_STR, type, flags, guiflags, _settings_client.var, sizeof(_settings_client.var), def, 0, 0, 0, nullptr, str, strhelp, strval, proc, from, to, cat, extra)
 
-#define SDTC_OMANY(var, type, flags, guiflags, def, max, full, str, strhelp, strval, proc, from, to, cat)\
-	SDTG_GENERAL(#var, SDT_ONEOFMANY, SL_VAR, type, flags, guiflags, _settings_client.var, 1, def, 0, max, 0, full, str, strhelp, strval, proc, from, to, cat)
+#define SDTC_OMANY(var, type, flags, guiflags, def, max, full, str, strhelp, strval, proc, from, to, cat, extra)\
+	SDTG_GENERAL(#var, SDT_ONEOFMANY, SL_VAR, type, flags, guiflags, _settings_client.var, 1, def, 0, max, 0, full, str, strhelp, strval, proc, from, to, cat, extra)
 
 #define SDT_END() {{nullptr, nullptr, SDT_NUMX, SGF_NONE, 0, 0, 0, nullptr, STR_NULL, STR_NULL, STR_NULL, nullptr, nullptr, SC_NONE}, SLE_END()}
 
diff --git a/src/table/settings.ini b/src/table/settings.ini
--- a/src/table/settings.ini
+++ b/src/table/settings.ini
@@ -62,18 +62,18 @@ const SettingDesc _settings[] = {
 [post-amble]
 };
 [templates]
-SDTG_BOOL  =  SDTG_BOOL($name,              $flags, $guiflags, $var, $def,                        $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDTG_VAR   =   SDTG_VAR($name,       $type, $flags, $guiflags, $var, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDTG_OMANY = SDTG_OMANY($name,       $type, $flags, $guiflags, $var, $def,       $max, $full,     $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDTC_BOOL  =  SDTC_BOOL(       $var,        $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDTC_LIST  =  SDTC_LIST(       $var, $type, $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDTC_OMANY = SDTC_OMANY(       $var, $type, $flags, $guiflags, $def,             $max, $full,     $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDTC_STR   =   SDTC_STR(       $var, $type, $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDTC_VAR   =   SDTC_VAR(       $var, $type, $flags, $guiflags, $def,       $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDT_BOOL   =   SDT_BOOL($base, $var,        $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDT_OMANY  =  SDT_OMANY($base, $var, $type, $flags, $guiflags, $def,             $max, $full,     $str, $strhelp, $strval, $proc, $from, $to, $load, $cat),
-SDT_STR    =    SDT_STR($base, $var, $type, $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat),
-SDT_VAR    =    SDT_VAR($base, $var, $type, $flags, $guiflags, $def,       $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to,        $cat),
+SDTG_BOOL  =  SDTG_BOOL($name,              $flags, $guiflags, $var, $def,                        $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDTG_VAR   =   SDTG_VAR($name,       $type, $flags, $guiflags, $var, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDTG_OMANY = SDTG_OMANY($name,       $type, $flags, $guiflags, $var, $def,       $max, $full,     $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDTC_BOOL  =  SDTC_BOOL(       $var,        $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDTC_LIST  =  SDTC_LIST(       $var, $type, $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDTC_OMANY = SDTC_OMANY(       $var, $type, $flags, $guiflags, $def,             $max, $full,     $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDTC_STR   =   SDTC_STR(       $var, $type, $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDTC_VAR   =   SDTC_VAR(       $var, $type, $flags, $guiflags, $def,       $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDT_BOOL   =   SDT_BOOL($base, $var,        $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDT_OMANY  =  SDT_OMANY($base, $var, $type, $flags, $guiflags, $def,             $max, $full,     $str, $strhelp, $strval, $proc, $from, $to, $load, $cat, $extra),
+SDT_STR    =    SDT_STR($base, $var, $type, $flags, $guiflags, $def,                              $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
+SDT_VAR    =    SDT_VAR($base, $var, $type, $flags, $guiflags, $def,       $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to,        $cat, $extra),
 SDT_NULL   =   SDT_NULL($length, $from, $to),
 SDT_END    = SDT_END()
 
@@ -89,6 +89,7 @@ load     = nullptr
 from     = SL_MIN_VERSION
 to       = SL_MAX_VERSION
 cat      = SC_ADVANCED
+extra    = 0
 
 
 
@@ -644,6 +645,7 @@ interval = 2
 str      = STR_CONFIG_SETTING_LINKGRAPH_INTERVAL
 strval   = STR_JUST_COMMA
 strhelp  = STR_CONFIG_SETTING_LINKGRAPH_INTERVAL_HELPTEXT
+extra    = offsetof(LinkGraphSettings, recalc_interval)
 
 [SDT_VAR]
 base     = GameSettings
@@ -657,6 +659,8 @@ interval = 1
 str      = STR_CONFIG_SETTING_LINKGRAPH_TIME
 strval   = STR_JUST_COMMA
 strhelp  = STR_CONFIG_SETTING_LINKGRAPH_TIME_HELPTEXT
+extra    = offsetof(LinkGraphSettings, recalc_time)
+
 
 [SDT_VAR]
 base     = GameSettings
@@ -671,6 +675,8 @@ interval = 1
 str      = STR_CONFIG_SETTING_DISTRIBUTION_PAX
 strval   = STR_CONFIG_SETTING_DISTRIBUTION_MANUAL
 strhelp  = STR_CONFIG_SETTING_DISTRIBUTION_PAX_HELPTEXT
+extra    = offsetof(LinkGraphSettings, distribution_pax)
+
 
 [SDT_VAR]
 base     = GameSettings
@@ -685,6 +691,8 @@ interval = 1
 str      = STR_CONFIG_SETTING_DISTRIBUTION_MAIL
 strval   = STR_CONFIG_SETTING_DISTRIBUTION_MANUAL
 strhelp  = STR_CONFIG_SETTING_DISTRIBUTION_MAIL_HELPTEXT
+extra    = offsetof(LinkGraphSettings, distribution_mail)
+
 
 [SDT_VAR]
 base     = GameSettings
@@ -699,6 +707,8 @@ interval = 1
 str      = STR_CONFIG_SETTING_DISTRIBUTION_ARMOURED
 strval   = STR_CONFIG_SETTING_DISTRIBUTION_MANUAL
 strhelp  = STR_CONFIG_SETTING_DISTRIBUTION_ARMOURED_HELPTEXT
+extra    = offsetof(LinkGraphSettings, distribution_armoured)
+
 
 [SDT_VAR]
 base     = GameSettings
@@ -713,6 +723,8 @@ interval = 1
 str      = STR_CONFIG_SETTING_DISTRIBUTION_DEFAULT
 strval   = STR_CONFIG_SETTING_DISTRIBUTION_MANUAL
 strhelp  = STR_CONFIG_SETTING_DISTRIBUTION_DEFAULT_HELPTEXT
+extra    = offsetof(LinkGraphSettings, distribution_default)
+
 
 [SDT_VAR]
 base     = GameSettings
@@ -726,6 +738,8 @@ interval = 1
 str      = STR_CONFIG_SETTING_LINKGRAPH_ACCURACY
 strval   = STR_JUST_COMMA
 strhelp  = STR_CONFIG_SETTING_LINKGRAPH_ACCURACY_HELPTEXT
+extra    = offsetof(LinkGraphSettings, accuracy)
+
 
 [SDT_VAR]
 base     = GameSettings
@@ -739,6 +753,8 @@ interval = 5
 str      = STR_CONFIG_SETTING_DEMAND_DISTANCE
 strval   = STR_CONFIG_SETTING_PERCENTAGE
 strhelp  = STR_CONFIG_SETTING_DEMAND_DISTANCE_HELPTEXT
+extra    = offsetof(LinkGraphSettings, demand_distance)
+
 
 [SDT_VAR]
 base     = GameSettings
@@ -752,6 +768,8 @@ interval = 5
 str      = STR_CONFIG_SETTING_DEMAND_SIZE
 strval   = STR_CONFIG_SETTING_PERCENTAGE
 strhelp  = STR_CONFIG_SETTING_DEMAND_SIZE_HELPTEXT
+extra    = offsetof(LinkGraphSettings, demand_size)
+
 
 [SDT_VAR]
 base     = GameSettings
@@ -765,6 +783,8 @@ interval = 5
 str      = STR_CONFIG_SETTING_SHORT_PATH_SATURATION
 strval   = STR_CONFIG_SETTING_PERCENTAGE
 strhelp  = STR_CONFIG_SETTING_SHORT_PATH_SATURATION_HELPTEXT
+extra    = offsetof(LinkGraphSettings, short_path_saturation)
+
 
 ; Vehicles
 
diff --git a/src/table/win32_settings.ini b/src/table/win32_settings.ini
--- a/src/table/win32_settings.ini
+++ b/src/table/win32_settings.ini
@@ -15,8 +15,8 @@ static const SettingDescGlobVarList _win
 };
 #endif /* _WIN32 */
 [templates]
-SDTG_BOOL = SDTG_BOOL($name,        $flags, $guiflags, $var, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDTG_VAR  =  SDTG_VAR($name, $type, $flags, $guiflags, $var, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to, $cat),
+SDTG_BOOL = SDTG_BOOL($name,        $flags, $guiflags, $var, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDTG_VAR  =  SDTG_VAR($name, $type, $flags, $guiflags, $var, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
 SDTG_END  = SDTG_END()
 
 [defaults]
@@ -31,6 +31,7 @@ load     = nullptr
 from     = SL_MIN_VERSION
 to       = SL_MAX_VERSION
 cat      = SC_ADVANCED
+extra    = 0
 
 
 
diff --git a/src/table/window_settings.ini b/src/table/window_settings.ini
--- a/src/table/window_settings.ini
+++ b/src/table/window_settings.ini
@@ -10,8 +10,8 @@ static const SettingDesc _window_setting
 [post-amble]
 };
 [templates]
-SDT_BOOL = SDT_BOOL($base, $var,        $flags, $guiflags, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat),
-SDT_VAR  =  SDT_VAR($base, $var, $type, $flags, $guiflags, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to, $cat),
+SDT_BOOL = SDT_BOOL($base, $var,        $flags, $guiflags, $def,                        $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
+SDT_VAR  =  SDT_VAR($base, $var, $type, $flags, $guiflags, $def, $min, $max, $interval, $str, $strhelp, $strval, $proc, $from, $to, $cat, $extra),
 SDT_END  = SDT_END()
 
 [defaults]
@@ -27,6 +27,7 @@ load     = nullptr
 from     = SL_MIN_VERSION
 to       = SL_MAX_VERSION
 cat      = SC_ADVANCED
+extra    = 0