Better Photo View Keyboard Shortcuts

[brishel]

I've been masking a few thousand photos, and I find the current shortcuts unnecessarily difficult (1.2.6-2834). For example, "add selection" should not require three keys (ctrl-shift-a) if "a" is available. Just "a" alone would be much easier. Similarly, "s" could subtract the selection.

I would also appreciate alternative next/previous photo keys of "x" and "z" or something that doesn't require me to move my hand back-and-forth across the keyboard for each photo. Page down/up could still also do next/previous, if it's okay to have multiple options.

Perhaps "d" could toggle between enabling and disabling a photo, and shift-d to remove.

I see that custom shortcut keys have been requested since 2012, but perhaps some alternative or replacement shortcuts would be easier (trivial?) to implement -- and save my wrists.

Thanks!