sharing keybinds like paging with applications

[KiaraGrouwstra]

Is your feature request related to a problem? Please describe.
I have been using Wezterm's keybinds, among which its ScrollByPage binds shift+PageUp and shift+PageDown.
i couldn't help but to feel tho that these binds made for sort of disparate UX with paging binds used in applications (e.g. less / vim), which would tend to just respond to PageUp/PageDown directly.
however, i found that if i were to assign ScrollByPage binds to PageUp/PageDown directly, only wezterm would still respond to it, yet the applications wouldn't anymore.

Describe the solution you'd like
allow sharing binds like PageUp/PageDown between wezterm and applications, similar to how both might respond to scrolling by mouse or touchpad.

Describe alternatives you've considered

• use different keybinds for the terminal versus applications, making for a less intuitive UX
• check if applications could respond to scrollback