There is a video on youtube that shows you how to use the mixing of a 2 channel switch and the 3 position switch to get all 6 mods. I have Stabalize, Loiter, and ALT H, then flip a switch and it goes to Auto, RTL, and Land. Pretty cool. I also programmed another switch to turn simple mode on and then a 4th switch to set auto trim. Come to think of it I guess I loaded my controller up pretty well.
I did the same with the DJI on my same controller. I have GPS, Atti, and Manual and then another switch activates RTL all on the same channel. Then I programmed another switch to turn the IOC on, and again another switch to go from Home lock and Course lock.
I had to go a little involved due to my remote, 9xr, only having 1 3 position switch.