You can combine individual Permission settings and Permission Groups.

For example, if an Agent is a member of All Non-Destructive Permissions. That Permission Group does not give them Permission to delete assigned Tickets or mark them as Spam:

Suppose you want to grant the Agent that Permission. You can just click the Can delete and spam and team tickets toggle on the Agent profile, to add the Permission. A Permission that’s not granted through a Permission Group is considered an override.

Removing Permissions

You can’t remove Permissions which are granted by a Permission Group; this is indicated by the lock symbols on the other Toggle controls.

Agent permissions are always additive - an Agent only needs to be granted a Permission by a single Group or an override to be able to use it.

To remove a locked Permission, you first need to remove the Agent from any Permission Groups that grant it.