@Andreas_Hegenberg I am using a new custom menu. When it is open, j and k become arrow keys to navigate up and down the menu. Enter triggers a menu item and when the menu closes, j and k become what they are again. This all works.
What unfortunately doesn't work is key repeat for j and k. Is this a bug you could fix? Thanks!
edit: I know, probably keyboard navigation will work with floating menus soon, but I want to keep this custom menu - if possible 