No, if you are in a PDF file, dragging the page will just give you blank space below the PDF.

If you hack the device and add a custom template, I don’t know what happens, but I doubt it will create a new page with the template. I suspect you will need to use the add page feature (which will copy the underlying template to the new page), or use an rM template that supports infinite scroll (lines or dots).

Black templates FFS it would be so easy

Straight lines are coming! The current beta has them and I’m so happy. IDK if they’ll add shapes with the next official release or if that’s up next/soon for beta, but I’m sure it’s in the pipeline somewhere. Sorry you aren’t enjoying it. I do find it gets tripped up with a lot of accidental zooming when using it for drawing, but the layers feature works well.