I recently posted on the support forum, but there does not seem to be an option for this. So posting here now as a feature request.
I would be super great if there a way to change the space or distance between the spreads/pages/pasteboard?
Within InDesign preferences ( Preferences > Guides & Pasteboard > Pasteboard Options ) there is a way to set this. I can't seem to find this in Publisher. I always found this helpful because sometimes I don't want to see the other page and prefer to focus on the page I'm designing.
Keep up the great work Affinity!