Allow to Control Countries Picklist in Phone field

Hi,

There is a nice feature in phone fields in titan web that recognizes phones according to county codes.

The field included a loaded picklist of all countries with their codes.

A lot of my forms are per continent or for several countries ( maximum 5).

In the bottom line I want to give my client the option to choose only from distinct picklist of countries and not make is experience bed for searching his country in loaded picklist