Hi, I've recently started using the Category tab to sort my movies by a single genre, e.g. Action Thriller, Crime Comedy, etc. However, I've used it differently in the past, e.g. Based on a Comic Book, etc.

I want to delete all the unused categories; however, they keep coming back, which creates an extremely long list of genres that I'm selecting from.

Is there any way that the unused ones can be deleted?

Thanks Dean