List of Rotations in QGroundControl?

I’m running QGC 3.5.5 with a PX4 Mini running 1.10.0beta.

the gui in QGC only shows 28 rotations in the dropdown list, vs. the 35 or so in the PX4 src. Is this a UI thing (like i’m not showing all of them) or something else?

(PS i’m compiling my own because i’m making a custom airframe with a custom mixer, should i use a different code base?)