(Almost) all the possible Keypress trigger behaviors you could need are found in the Keyboard Reference object.
(I have recently discovered that there are actually some duplicates of the same key / character but with 2 different Keycodes, so I still need to add those 2nd Keycodes that I just found)

Here's a table with most of the keycodes (number ids for each key; some are not correct for the Keyboard behavior's keycodes):
https://www.toptal.com/developers/keycode/table