Used incorrect IDC, this is not where we show the map scale on the TAD dialog (we don't do that at the moment)
Added missing uiNamespace for messaging dialogs variables to initialization section
Added function cTab_fnc_settings to handle storage and retrieval of cTab related settings.
Added function cTab_fnc_IfUpdate to replace the ugly cTab_fnc_OSD_update function. Should be much more flexible now.
Changed all settings that were previously handled by cTab_fnc_OSD_update to use the new cTab_fnc_settings function.