Media bin filters

While you can delete unused media or select unused media in the media bin on Mac Camtasia (V2021) it would be more helpful to allow a user to show only unused media in the bin so you can tell whether you've added all of your assets or not. 

Use case:
I am creating a video gallery of many images and short movie clips. There are quite a lot of images (200-ish) and I want to avoid duplicating them. Camtasia chokes my 2018 Macbook Pro if I try to add all of the assets to the timeline, so 'selecting unused media' is no help. I want to basically have a list of assets that gets smaller as I add them to the timeline with this filter on.