Inspired by this post, but also because I've seen other users get stuck because of the same issue...   When the Resource Manager is set to filter a specific type of Resource, but none exist in the file that's being viewed, there is a message which simply reads "There are no items to show in this view." This isn't particularly helpful, so there should also be a button which says "Switch to viewing all resource types" that you can click to switch the filter to All Resources (same as the