the only Futaba experience i get is from setting up stuff for other folks but I've had my fair share of it and IIRC the 14mz (and other Futaba) can only do one wing configuration at the time and the requested setup is two wing configurations. being you can't use two, you'll have to set up flaperons, then use a mix for the ailevators and when flaperons are activated have ailerons goto 0% so they won't move and have that switch activate the mix for the stabs to kick in.