Android 7.0 introduced the ability to create custom quick settings. Can you make one (or as many as the app require) instead of having a permanent notification? May be you make it optional for Android 7 users.
Indeed. That was included in the last update. You should be able to add/edit tiles (up to 6 of them) from your quick settings drawer. You may also want to disable the notification from the app menu.
Android 7.0 introduced the ability to create custom quick settings. Can you make one (or as many as the app require) instead of having a permanent notification? May be you make it optional for Android 7 users.