Shake & O-Rat
If your taking still shots aiservo off/on is not such an issue, so I assume video mode is your need. And for that Canon has a neat
button, just use the Flash button for movie-servo off/on. I prefer ML screen to DSLR controller, as I use liveview with a 3X loupe, it retains fast touchscreen af, which I dont think DSLR controller is as fast (as I recall its been a while). Focus peaks, zebras, and the ml screen are my preferred mode.