What version(s) of WoW are you using?

Retail

What problem are you experiencing that led to you asking for this feature?

Currently you can only always show buttons or show buttons when holding Alt. Likewise for add buttons, "Dragging then Alt" is the only option if you want use a modifier.

What solution would you like?

Give options to use Ctrl or Shift for these settings.

Any alternatives you can think of?

No response

Anything else?

No response

No plans to add more different modifiers for showing buttons/category add buttons