Lock and password protect instrument visibility

Hello,
The possibility to lock by password, the visibility or not of an instrument seems judicious to me, I use MuseScore in the framework of teaching and pedagogical tools and then this function will allow to deploy to the students who will have Access via the cloud, to online materials, however with a security regarding lessons and exercises, listening and rhythm, intervals, etc.

They can indeed intervene on the capture of the answers, but obviously they could only hear without showing what is masked.
I hope to have been clear in the explanation motivate my request.
Community and team friendships,

Best regards...
Max