One can also tune radios without dot commands.
Press any radio button (I have mapped mine away from the '/' keys, preferring instead to use the 5,6,7,8,9 keys) then click in the buffer of the radio you want to tune and enter then number with the keyboard and make sure to press enter.
Likewise, if you select the wrong radio, another can be selected by using the mouse (even after the text message has been entered, but before it has been transmitted).
Cheers,
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phaetnAT
Aces High Alpha Tester