@Agave_Blue: The two sets of trim commands reflect WHERE the trim is applied.
One is the HOTAS trim, and the other is the trim wheels on the flight panel.
Dunno how necessary this is really. If you wanted to get correct operation you would rig motorized pots for the manual trim and interface them with the stick inputs through something like Pokeys boards. You wouldnt use BMS (I dont even think you could) for it.