in order to really play (vi)tetris in the terminal (:P) i want to be able to hold a key and press another without the second key interrupting the autorepeat of the first one.

example: i will hold 'e' and at some point i will press 'x', WITHOUT releasing the 'e' key:

eeeeeeeeeeeeeeeeeex

the output of what i want, would look like this:

eeeeeeeeeeeeeeeeeeexeeeeeeeeeeee (....)

using xfce4-terminal but i'm certain that i doesn't matter, because it's the same in any program that uses 'regular' keyboard input. Dedicated tetris programs like nullpomino work in the expected way of course.