This is likely a problem with the radio display. The gauge itself may have assumptions built in. This is the case with the Bendix King radios in some of the default aircraft. The aircraft developer that sets the higher range will need to assure their gauge display is compatible. You may be able to ...

I’ve done what was said above an added the frequency range line, however the lowest my com1 will go is 110.000and the highest was something like 360.000
Or something around that number. Now if I’m not mistaken that VHF/UHF range, where’s the HF range?

From what I’ve been reading VHF and UHF are implemented, I don’t think HF is yet though.
Could be wrong.