"Media Cleaner" in Cinegy Desktop creates a new copy of the media file that contains only used material - those pieces of the material that are referenced by clips/sequences/etc. The unused material is being cut off and can be removed afterwards.

"Purge delete node" removes object (node) and its metadata marked as deleted from the Cinegy Archive database permanently.

"Consistency Checking" allows you to find unused/deleted nodes and metadata and media files that have no references to the nodes in the Cinegy Archive database for the following deletion.