A lot of triggers.

You said letters - you have numbers as well, and some punctuation might work.

But there are also tricks like layering triggers which Dan alluded to. E.g. if you have a swapset above triggers, then you can bind 1,2,3,4 say to the upper swapset, then reuse letters across the swapsets. You need to do “1a” and “2b” to select them, but just wanted to make sure that if you have different profiles you know you can reuse the same letter for hand positions in all profiles (they don’t need to be distinct).

Currently, the main two options are using the Controls Panel and clicking/tapping buttons instead of keys or using MIDI devices and binding keys on those (some of which have a lot of keys/buttons).

It is also sometimes possible to re-use keys for sub-triggers that are in mutually exclusive states (sub-cycles on different triggered states that are never visible at the same time), though that's a pretty niche case.

DT