You can take a quick snapshot of all of your permissions using the Permissions Snapshots feature. This will take a full copy of the permissions on every container and store it using a name of your choice. Then if you need to restore to this stage you can simply find it in the snapshot list and click the “Restore” button.
This can be useful when you are first learning to setup OVERLAPS permissions and you want to save a working state before making changes.
Note that if no permissions have been created yet then attempting to create a snapshot will show an error.
By default, OVERLAPS will also take an automatic snapshot of your permissions every night for backup purposes, which will be kept for 7 days. Both of these settings are configurable under Config -> Active Directory -> Permissions Snapshot Settings.