Bought a T-Lock part # 5697 for the Traxxas Summit, this will allow me to controll the locking diffs and the 2 speed using only one channel on the Taranis Q7 controller.
The T-Lock was used on the original Summit to save channels it allowed the diff locks to work off one channel. It’s actuall pretty simple, works off a 3 way switch
Switch up 100% all servo off
Switch middle 0 front servo on (locked) A
Switch down -100% rear servo on (locked) B

I want to use the T-Lock a little different. With switch up I wanted all the diffs unlocked and the 2 speed in high gear. Middle 2 speed in low gear, switch down low gear with both diffs locked.

To accomplish this I put the 2 speed servo on A of the T-Lock with a servo reverer in line. On B of the T-Lock I out a Y & plugged both diff servos into the Y

On the Taranis I needed to setup the the switch to control the above, I will be using switch C for this
Input Screen for the Summit on the Taranis
IM8 100% SC
Mixer Screen
Ch8 100% SC UP