The sketches are always 800x480 pixels right now. But I will add enlarge canvas option. mmm, maybe keep the 800 pixels width but add new "pages" of 480 pixels...

Notebook-lines will be available on the next version, you will be able to toggle them on and off.

Btw, right now current unreleased version allows bigger sketchnodenames (288x96 instead of 144x48) and then clips the white portions, resizes it and centers it vertically. (horizontally it's left aligned) It's going good.