The following permissions are available depending on your plan.

Show all user namesPermission to display user names, e.g. current user display in the room list
Show all usersPermission to search in the list of users
Invite usersPermission to invite users
Administrate usersContains the permission to invite users and edit all existing users
Show all roomsPermission to list all rooms in the room list, even without access permission
Create roomPermission to create rooms
Administrate roomsContains the permission to create rooms and edit all existing rooms
Grant permissionsPermission to pass on all of the permissions above