Animation between different sized artboards

Principle Version: 5.10
macOS Version: Catalina 10.15.3
Sketch Version: 60.1

Trying to have different sized art boards in the same file in order to make transitions/animations between them. Is there any way to do that? I can’t seem to create different sized art boards in the same file…
It may allow for mimicking breaking points for responsive designs, which seems in itself an essential feature that seems to be missing in Principle so far. But maybe I just don’t see it, or there’s a clever work-around?

I appreciate any suggestions.


Just replied to your question here: