Automatic Screenshots for Templates not generating correctly

My App/Pages support link:

Describe the bug:
Because of the settings of the various layout screens of this app… most of it is not visible by default. I believe that is making it impossible for the screenshots to be generated other than to show a blank screen with signup / login options displayed at top of the page.

Expected behavior:
I would like to see a way to be able to provide our own screenshots. I think this would be better in showing the full usecase / features of the app by being able to provide screens such as admin dashboard etc as well.