That’s a very valid question, and I forgot to explain in my request what I am thinking about!
I think (almost) every user of an app should be able to see a ‘home page’ for that app, with a description of the app’s functionality (see this: Add "Description" area to apps created from Scratch ) including a relationship diagram, showing how types relate to each other (see this: Breadcrumb on Entity card to show location in Hierarchy )
As discussed in the ‘breadcrumb’ thread, one could access a ‘jump-list’ of all entities of a given type, without having to create a specific table view (which uses up real estate in the side bar).
My thought is that it should be possible in documents (and rich-text fields) to #mention a type (or even an app) which when clicked upon takes you to the ‘jump-list’ for that type (or the ‘home page’ for the app).
I’m not surprised that you weren’t able to completely understand all of that unspoken intent in my original request 
Hope it makes more sense now!