It is great to have free formatting for note taking, but for document collaboration in the context of a company or even just because some documents have to be printed, it would be crucial to enable ON/OFF page formatting and navigation in Proton Docs. Provide few popular option for page size format (A4, A3, and US equivalent e.g. Letter, etc.) and allow for Portrait or Landscape display.

Future features this could later enable (not the object of this request):
* Page numbering.
* Header/Footer for official company document templates.
* Enabling a PPT/Slide style formatting in Proton Docs if A3 like style is available.