is it possible to extract all data model errors into a single document?
There's no easy way to do this now - you cannot export it as PDF or any other document.
Actually, you can access this list this using JS dev console, but that's a kind of "hacky" solution. If it's really imporatant for you, I can provide you with such a workaround.
Knowing there is a way to do it is enough for the moment - I'm just evaluating the software at the moment.
Customer support service by UserEcho