[FR] Add a hotkey on the center side of keyboard to go up one level in file heirarchy

[Archie-2021]

Hey , can you add a hotkey for going up one level (does what {Up Arrow} does right now)?
All the keys has similar shortcuts, \ for opening context menu and Enter for going into a folder/opening file. But there is no key for going back / up in file hierarchy other than up key which is far away. I suggest keys like - or / because as non alphabetic choices that don't interrupt search function.

Thanks

[pjeby]

Hm, I thought I'd already mapped Backspace for that, but it appears I did not. I'll add it in the next release.