Removing unwanted metadata
You can use Metadata Utilities to automatically remove unwanted metadata items after they are added to a game through a metadata update. Simply add them to the list under the “Remove unwanted” tab in the addon settings and tick the checkbox “Remove unwanted items on metadata update” to the right of the list.
You can also manually remove those items by selecting one or more games and clicking the “Remove unwanted metadata” option in the context menu under Metadata Editor.
Removing unused metadata
Playnite already allows you to manually remove unused metadata in the Library Manager for each type separately, but Metadata Utilities goes a bit further.
You can automatically remove unused metadata when starting Playnite by ticking the combobox “Remove unused metadata on start up” for each desired field under the “Field types” tab in the addon settings. If you also tick the box “Ignore hidden games when removing unused metadata”, the addon will also remove items, that are only used by hidden games. There’s also a whitelist for items, you want to keep, even if they are not used.
You can also trigger this function manually by clicking the “Remove unused metadata” option in the extensions menu or the button of the same name in the Metadata Editor.
Whitelist
You can use the whitelist in the addon settings to specify values that should not be deleted if they are no longer used. You can also specify whether they should be hidden in the detailed view in the theme (only for themes that have integrated Metadata Utilities controls) or in the metadata editor. The “Add defaults” button can be used to automatically add some common values used by other add-ons to the list.
Adding default categories/tags
In older versions of the add-on, there was a dedicated function to add standard categories and tags. This has since been removed and can instead be implemented with far more options as a conditional action. For this purpose, there is the condition “Game is new”.