You can restrict access to the app based on Roles or Groups. This will also ensure that only users that need the app will be charged the monthly subscription fee.
Go to Settings > Manage (under Apps) > Playlist Ticket Assignment > Role restrictions
There are two options:
- Role restrictions: assign the app to specific roles (i.e. Admin, Staff)
- Group restrictions: create a "Playlist users" group, add the appropriate users to that group, and assign the app to just that group.
Unless you have requirements to use both options, we recommend that you use only one of the two. Combining the two will make managing permissions a bit tricky.