Geofencing with FortiGate

Hi All,

I like to have a replacement message when a URL is blocked when it is hitted by our geo fence firewall rule. I have created a address group with countries that are allowed to be visited, but when a website is not allowed to visit the default message of "This webpage cannot be displayed" is shown.

LAN - sdWAN - destination Geo countries = Allow 

LAN - sdWAN - Any = Deny

I like to have a message such as when you try to browse a website which is blocked by the webfilter categories.