DX7 mixing

[AlexG]

I've got a DX7 but I'm a complet noob in mixing. I know what I want and it seem that my radio can do it but I have some problem to made it work.
I will run twin esc and I wanted to be able to use the three position switch to have one mode with front dig, 4wd and rear dig driven by the elevator stick. Also another switch to let me use the throttle stick to drive the front motor and the elevator stick for the rear motor. It's seems possible but I'm not able to figure out how to do it.

Thanks for your help.

[AlexG]

Nobody?

Sa far I've set the hold switch to full time 4wd driven by the elevator stick and independant control of the front and the rear axle with the throttle and elevator stick but I want to be able to use also the 3 pos switch to power only my front axle in one position with the elevator stick and the other position for the rear motor. Any idea if it's possible?

Thanks