[eviks]

You don't need to remember since you don't need to hold it down, you can toggle Or both, hold for shorter totp codes, toggle for longer data entry sessions Or you could have a one-shot modifier where for single numbers you wouldn't need to hold anything (while avoiding having to frequently move your hand back and forth just for a single symbol). This works similar to one-shot shift for a First Letter Cap

And the mistake in your first response with the numbers on the opposite ends isn't about "personal habit"

[hnlmorg]

Everything about keyboard preference is to do with personal habit. Using a keyboard effectively requires committing actions to muscle memory. Which is literally just another way of saying personal habits.

The ironic thing is this conversation of ours would have cost us more energy than what would have been saved from a lifetime of any of your keyboard optimisations. Which is why I roll my eyes when people try to intellectualise their keyboard preferences as some kind of revolutionary time and effort saver.