Support for more than 2 COM radios

[JB3DG]

Is there a possibility of getting support for a 3rd and even a 4th COM radio?

Some of the military aircraft I work on have a VHF and a UHF radio with simultaneous transmit on both with guard receive. To simulate that I would need to be able to tune COM 1 and 2 as the UHF and VHF radios, and COM 3 as UHF guard and COM 4 as VHF guard.