Sorry, I'm sure this has been asked before, but seems like the other situations were a little different. I've installed ML and can see the menus on my T2i by pressing the trash can. But, when I'm in video mode, the screen and controls are 100% canon.
Toggle screens by pressing INFO to access ML liveview screen.
You can define up to 3 additional ML liveview display presets:
https://wiki.magiclantern.fm/camera_help#lv_display_presets
That's the fix, "display" button. Thx! :)