Futaba has a great FAQ and Q & A site that discusses mixes on specific transmitters.

http://www.futaba-rc.com/faq/product-faq.html

http://2.4gigahertz.com/systems/futk7000.html

http://www.futaba-rc.com/radios/futj69.html

If you want the ailerons to move as the elevator is activated that's different from flaps or spoilers. You have to slave ailerons to the elevator with a custom mix and assign it to a switch. I'm thinking you'd assign one side at a time (i.e. channel 1 & 6) and assign each to the same switch.

I have the 9C and, luckily, Harry Higley wrote a whole book on such things. Really goes above and beyond the manual and is understandable and very specific to "real" needs.