Add ability to access your display elements from the mapping page

[blun23]

Is your feature request related to a problem? Please describe.
I know myself and countless others have hundreds of times added props to the layout, go to map a sequence or update one, realize that "dang it, I forgot to add that model and/or groups to my master/current view" and then have to cancel out, go into display elements and add it.

Describe the solution you'd like
It would be beyond amazing if there was a button one could click on to open display elements, add the models or groups to the master view, click Ok and then they would be now added to mapping list to be mapped to.

Describe alternatives you've considered
Maybe a warning prompt that says you have models/groups not in the current view, though many have different groups, moving heads only group for example, that only have certain props in it. So I would see most people disabling it.