feature request: A4 canvas format

Hello,

screen size formats are not compatible with real paper. Could you add canvas size like A5 that is close to the screen size so easy to edit. Or even better a A4 canvas ? It is bigger that screen size but screen lenght is equal to A4 width so just a scrolling feature (another really usefull feature) to go lower on the page would do the job.

thank for your interest !