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