diff --git a/src/lang/english.txt b/src/lang/english.txt
index be25135c45..cc5bea16b6 100644
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -6224,11 +6224,12 @@ CM_STR_CONFIG_SETTING_ORDER_MOD_ACTION_NO_LOAD                  :Do not load any
 CM_STR_CONFIG_SETTING_PERSISTENT_DEPOTTOOLS                     :Keep depot building tools active after usage: {STRING2}
 CM_STR_CONFIG_SETTING_PERSISTENT_DEPOTTOOLS_HELPTEXT            :Keep the building tools for road, train and ship depots (reversible by placing with Ctrl).
 CM_STR_CONFIG_SETTING_IMPROVED_STATION_JOIN                     :Use improved station joining controls: {STRING2}
-CM_STR_CONFIG_SETTING_IMPROVED_STATION_JOIN_HELPTEXT            :Use Ctrl-click on station tile to select or deselect station to join. If station has no tiles Ctrl-click its sign. Ctrl-click empty tile for a new station. Also recently built station is automatically selected as a station to join. {RED}Doesn't work if joining stations not directly adjacent(distant join) is not allowed in settings.
+CM_STR_CONFIG_SETTING_IMPROVED_STATION_JOIN_HELPTEXT            :Use Fn-click on station tile to select or deselect station to join. If station has no tiles Fn-click its sign. Fn-click empty tile for a new station. Also recently built station is automatically selected as a station to join. {RED}Doesn't work if joining stations not directly adjacent(distant join) is not allowed in settings.
 
 CM_STR_CONFIG_SETTING_VEHICLES_CTRL                             :{ORANGE}Controls & Orders
 CM_STR_CONFIG_SETTING_AUTOSET_NOLOAD_ON_TRANSFER                :"Transfer" orders are "No Loading" by default: {STRING2}
 CM_STR_CONFIG_SETTING_AUTOSET_NOLOAD_ON_UNLOAD                  :"Unload all" orders are "No Loading" by default: {STRING2}
+CM_STR_CONFIG_SETTING_INVERT_FN_FOR_SIGNALS                     :Invert the effect of Fn modifier when building signals: {STRING2}
 
 CM_STR_TOGGLE_CLIENTS_OVERLAY                                   :{BLACK}Toggle client list overlay.
 
@@ -6289,3 +6290,4 @@ CM_STR_BUILD_INFO_OVERLAY_STATION_SUPPLIES                      :{WHITE}Supplies
 CM_STR_BUILD_INFO_OVERLAY_STATION_CARGO                         :{WHITE}{CARGO_LONG}
 CM_STR_BUILD_INFO_OVERLAY_ERROR                                 :{RED}{STRING}
 CM_STR_BUILD_INFO_OVERLAY_ERROR_UNKNOWN                         :{RED}Unknown Error!
+
diff --git a/src/table/settings/cmclient_settings.ini b/src/table/settings/cmclient_settings.ini
index 2f7e8fd90c..c112df064c 100644
--- a/src/table/settings/cmclient_settings.ini
+++ b/src/table/settings/cmclient_settings.ini
@@ -282,3 +282,10 @@ def      = false
 str      = CM_STR_CONFIG_SETTING_ENABLE_POLYRAIL_TERRAFORM
 strhelp  = CM_STR_CONFIG_SETTING_ENABLE_POLYRAIL_TERRAFORM_HELPTEXT
 cat      = SC_EXPERT
+
+[SDTC_BOOL]
+var      = gui.cm_invert_ctrl_for_signals
+def      = false
+str      = CM_STR_CONFIG_SETTING_ENABLE_POLYRAIL_TERRAFORM
+strhelp  = CM_STR_CONFIG_SETTING_ENABLE_POLYRAIL_TERRAFORM_HELPTEXT
+cat      = SC_BASIC
diff --git a/vcpkg.json b/vcpkg.json
index 9ba062ebb2..71e25b8e18 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -48,10 +48,10 @@
     },
     {
       "name": "zlib"
-    }
+    },
     {
       "name": "zstd"
-    },
+    }
   ],
   "builtin-baseline": "94cf042e6b7713913a3b3150f3ca3d0f4550f7c4"
 }