Cleanup missing digital assets

The Cleanup missing digital assets add-in is used to remove references to digital assets which no longer exist - see more here.

To configure the add-in:

1. If relevant, check search including sub folders
2. Select the folder you want to clean up assets from

The add-in is very simple - it checks values in the database against all files in the asset folder (and optionally sub folders) and removes those values not matched by a file name.