Synchronize the Category Index with Stored Categories
You can use the CategorySyncCatDRE action to synchronize the IDOL category index with the categories stored on disk. CategorySyncCatDRE deletes the current contents of the category index, and overwrites it with the category information stored on disk. For example:
action=CategorySyncCatDRE
In this example, the IDOL Category component synchronizes its category index with the categories stored on disk.