Selectable PPM out channel order - AETR/EATR etc

Small request but would be helpful. Could you add in to the menu an option to set the PPM output channel order, kinda like what happens when you change from DEVO protocol to DSM2 for example. Yes you can change this in the channels, but having where you select PPM out would be sweet. Typically on the HT8 and FBL100 it wants AETR which I am manually changing for now in the channels, but I think its maybe a small change that could be implemented relatively easy perhaps?