I'm trying to set up the RX-based mixing on my 10-20R. I want to select 2 output channels for ail, 2 for elev, etc. For some reason, the prog will NOT allow me to assign 2 output channels to a single input channel if those output channels are exactly 8 apart. So, for instance I can assign 4 & 11, or 4 & 13 etc for elevator, but not 4 & 12. Similarly for any other combination of outputs - any spacing apart oyther than 8 seems t obe allowed. I really want 8 if possible, because then that allows me to have a 'row' on the RX per mix - the 2 elev servos plugging in next to each other, the 2 TE flap next to each other, 2 LE flap ... it seems ludicrous if this is prohibited for some weird reason.

Any advice from the gurus ?

Gordon