: Enabling "Radio to Radio Clone" mode so multiple units can be updated quickly from a "master" radio.

A: Technically, FCC Part 90 requires that radios be programmed by a responsible party aware of frequency interference rules. You do not need an "FCC programming license," but the user needs a site license for business frequencies. You cannot legally program amateur (ham) or GMRS frequencies into an EVX-261 and transmit.