execute a keystroke in XML ?

i would like to use the radio to tune the program enviro.enviro uses hot keys to change the "bank" of recordings it plays.i would like to be able to execute that keystroke without the keyboard, ideally using XMLI have never seen it, but it seems like it should be possible to do. perhaps someone has a C gauge that mediates between the instruction and xml, or perhaps some magic trickery via FSUIPC?