[Wishlist] Scroll Lock state in keybinding context

[FHTheron]

Since scroll-lock is not really used by anything anywhere and is still present on most keyboards, having it available as a boolean state in context for keybindings could be useful.

An obvious use for this would be turning the keyboard arrow keys into scroll keys (like ctrl+arrow typically does already), but it allows for a sort of second layer of keybindings.

I don’t really know where I would use this right now, but I’m sure I’ll find some silly thing to do with it.

[addons_zz]

Are not they removing this Scroll Lock key on the new keyboards? Then create new things would not be worth. Also, I would not like this kind of context switch. I already got scrolled by the Num Lock key several times. Perhaps a new modifier key would be welcome.