CommanderFunctionKeys - DX Lab Suite Wiki

Using Function Keys

Your keyboard's function keys can be used to initiate the following actions on the current primary transceiver:

Button	Action
F1	momentarily exchanges VFO contents or VFO roles
F2	switches from transmitting to receiving
F4	switches from receiving to transmitting
SHIFT-F1	selects VFO A
SHIFT-F2	selects VFO B
SHIFT-F3	sets VFO B to VFO A's frequency
SHIFT-F4	swaps VFO frequencies or roles

When controlling a radio with Main and Sub VFOs, substitute Main VFO for VFO A and Sub VFO for VFO B in the descriptions above.