See, for me it's the complete opposite, typing words unrelated to the actual code makes me lose part of my focus, whereas navigating the mouse or a dropdown list isn't requiring me to "create" words or strings in my mind.

Maybe that's just because I haven't gone through the learning curve, but I suspect the difference would be negligible.

[Edit] That's only for keybindings that force me to input string though, I vigorously use keybindings.