Allow working on multiple "pages"

Sometimes I only have the time to print in A4 size, with that in mind I thought it would be nice to have a feature where you can add another page and essentially "expand" the working space. For example, let's say I need a bigger map so I use x4 A4 papers in a 2x2 layout. Then all I would need to do is cut the border and merge them myself, it will also allow for printing maps from home in a hurry and not be constrained to a single size of your paper.

I know you could in theory work on your maps individually and then combine them anyways but being able to see what you had on your other page while working on the current one would be nice.