10+ VoWiFi

[Febis1]

Kindly advise (if Known) if there is an update expected (???) which will allow the WiFi calling button to be ¨installed" amongst the other "buttons" (in the drop down display screen) and MOREOVER as the 10+ (mine is the I4213) provides (by default) the WiFi calling function, why we cannot (via the main menu presumably) trace it anywhere at all??? BY THE WAY as another member of the family has the SAMSUNG 9, both my CARRIER (itself) and all family SIM cards, support this function (wi fi calling has been enabled in my line from the carrier itsef).Thanks in advance