I just noticed that this already sort of exists. If you create a membership group, when a student clicks the upgrade button in the dashboard, it shows what is available in the upgraded plan. It only shows the additional items, but it is pretty close to what I would like to see. A comprehensive listing of everything that is available in the membership

In conjunction with this, it would be nice if we could assign products to memberships from within the product settings. So when we complete a course, we can go to the settings page, and see a list of all active membership plans, and then just click on the plans it should be included in. Right now, we'd have to go to the membership area, then search for that product repeatedly for every membership.

Rewording for better communication: A widget that can be dragged and dropped would ONLY show those products—courses, digital products, audio, communities, etc.—that are 'ADDED' to the membership plan. Currently, there is no way to display ONLY the products that are included on the membership page so that customers can see what is included before subscribing. :)