feature request: revoke permissions keyboard shortcut

[VioletLovesJasmine]

My use case for RustDesk is demos, teaching and training. Permissions can all be set to off by default when a remote connects so that the remote can view only. This is great! Sometimes I want to grant keyboard and mouse permission so the remote can interact with what we're doing.

I would like to be able to revoke keyboard and mouse permission with a keyboard shortcut so I don't have to fight the (well-intentioned) user for mouse control afterwards.

I don't think there is a way to do this or anyone else has suggested it; apologies if I am mistaken.
Thank you for writing good software :)