Earlier quoted context omitted.
That's an interesting idea, and you can, but if you have an entire keyboard anyway why not use that?
That was my first reaction too but it's growing on me! With IntelliJ on an external Mac keyboard (because, 2017 era MBP, yeesh) for some reason they didn't group the F keys. I mean at least there are F keys. So it's always stressful to try to step over, because the continue button is right next to it (F8 and F9) and it's easy to lose minutes of context buildup with one wrong button press. And then, HTF do you force-s…
Sadly it's difficult to see all the mapped keys at once, and the search can't search for the key (only for the action a key might be bound to) so making new maps is a bit tedious. It's possible to do so via making a plugin, but that's probably even more effort.