Flymodels55

Hi all How do I aassign the buttons and keys to the FSUIPC, I have assigned other keys like switching frequency from NAV1 active to NAV2 standby...Ext.. I would like to assign from the AUDIO CONTROL PANEL on the PMDG 747 (Typical) Transmitter Selector switch which is the MIC SELECTOR to a given key on my keyboard please. I have been going through the FSUIPC Key Press List and i cannot find it. my FSUIPC is a registered version 4 for FSX, your help would be much appreciated.

Moved to Main Forum. Please ask questions related to FSUIPC only in Main Forum ! I bought My FSUIPC Version 3.3999z9 about 4 to 5 years ago with on problem at all I have done quite some updates along the way again with on issues At the moment i have bought a new PC and installed my Microsoft Flight Simulator X: Steam Edition, now i cannot register my lattes FSUIPC Version 4 4.971 it dose mot accept my purchase product code or even an earlier version. Any help would be much appreciated. Thanks