Forget about the 'return' key. My point is, for an operation one potentially does a hundred times a day (arguably the *most* common operation you can do in a File Explorer!), it should have required a single key press, I'm pretty fine with it being any other key. (However, 'return' key has a significant size so easy to hit anytime from anywhere without needing a lot of attention or looking at the keyboard, so that's just a good candidate IMO, and keys like 'delete' won't be a good choice for it ;) )