It is possible. Set up program A to water zones 1-5 on your chosen days. Set up program B to water zones 6-10 on the other days. Make sure not to overlap watering times so that program B is trying to water while program A is.
If the selector switch stays on program A, will it still run program B or once you program A,B,C they all 3 run at the programmed times?
Game plan would be to
set program A to run zone 1-5 at 5:00am and water deeper(MWF)
Set program B to run zone 6-10 at 5:00am and water deeper (TTS)