Access control - user groups

[user7771]

Hello,

maybe someone can help me with my problem:

I have LDAP groups in my system. Only users from the teachers group should be able to use the veyon master -> this works.
But if a teacher is logged in at a computer somewhere, another teacher from another computer shouldn't be able to get access to this computer.

Has anyone an idea how a rule should look like to solve this problem?

Thank you!