Yeah there is. You just have to combine the elevator dual rate and the aileron dual rate into one switch. Set the Tx to mode 2 under DRSW. That function is in the PARA menu. That will give you dual rates for rudder but all the surface dual rates will be controlled with the aileron dual rate switch on the upper right. The rudder, elevator, and aileron percentages do not have to be the same value like someone mentioned earlier.

spawnxx2k,
Definitely set up low rates for your first flights, 1" of elevator on a Spacewalker is a lot.