NiTOXide

Thanks @Dan C for confirming I'm on the right track.
Learning and understanding this has made my workflow easier. Only managing one or two masks for the adjustments is a huge bonus.

I am teaching this subject in 40 minutes, so came here to see if Publisher 2 had finally implemented multi-page spreads. This is one of the most essential features, along with global layers and foot/end note support. I guess we got one out of three?

Hey Serif + Affinity Team,
Just chiming in to show support for a 3+ page spread option in Affinity Publisher. It's something I thought I could leave behind in Adobe InDesign but now I am sorely missing the ability to do a multi-page spread for a layout project.
May we please have some clarification on where this feature is in the pipeline? 
I could create an obscenely wide sheet/page and then divide it up in Photo's Export Persona but other items have come up:
The project is 10 pages (Instagram carousel layout) with overlapping content across each page. Almost like a mural of photographs and content. "Why not use Designer?" - I wish to retain the Picture Frame elements of Publisher for the photo layouts and cropping. Easier for me. I created a single super-wide page which would be divided up into 10 pages. This is where I discovered: We're limited to a maximum of 48 column and row guides on a page The original idea was to have 10 column guides per page to help with image and content layout.  Therefore the super-wide page should have 100 columns and 10 rows. Finally just opted for 40 columns and 10 rows - 4 per page. Should suffice. Had to adjust gutters so everything lined up with the "page end" guides. This is a janky way of doing it with the following limitations:
Can't use individual page/spread masters for each page or spread. Not a big problem as this layout will be custom.  However for someone who wants to create a lot of these and change sections of the massive spread on the fly. Weird stuff happens when you add or remove spreads or pages (sizes change, masters change ... it becomes a hot mess). Action items to consider:
Serif, please give us the ability to place pages side-by-side so we can overlap content over multiple pages. Will give you money in exchange for not having to do the above. Even create a plugin or an add on for a reasonable cost. Attachments:
Apub-File with two-page spreads and the massive spread. Delete, add, or insert pages ahead of the massive spread, I dare you. See what happens. PDF of the Massive Spread. Sample.afpub Sample.pdf

Hey Serif + Affinity Team,
Just chiming in to show support for a 3+ page spread option in Affinity Publisher. It's something I thought I could leave behind in Adobe InDesign but now I am sorely missing the ability to do a multi-page spread for a layout project.
May we please have some clarification on where this feature is in the pipeline? 
I could create an obscenely wide sheet/page and then divide it up in Photo's Export Persona but other items have come up:
The project is 10 pages (Instagram carousel layout) with overlapping content across each page. Almost like a mural of photographs and content. "Why not use Designer?" - I wish to retain the Picture Frame elements of Publisher for the photo layouts and cropping. Easier for me. I created a single super-wide page which would be divided up into 10 pages. This is where I discovered: We're limited to a maximum of 48 column and row guides on a page The original idea was to have 10 column guides per page to help with image and content layout.  Therefore the super-wide page should have 100 columns and 10 rows. Finally just opted for 40 columns and 10 rows - 4 per page. Should suffice. Had to adjust gutters so everything lined up with the "page end" guides. This is a janky way of doing it with the following limitations:
Can't use individual page/spread masters for each page or spread. Not a big problem as this layout will be custom.  However for someone who wants to create a lot of these and change sections of the massive spread on the fly. Weird stuff happens when you add or remove spreads or pages (sizes change, masters change ... it becomes a hot mess). Action items to consider:
Serif, please give us the ability to place pages side-by-side so we can overlap content over multiple pages. Will give you money in exchange for not having to do the above. Even create a plugin or an add on for a reasonable cost. Attachments:
Apub-File with two-page spreads and the massive spread. Delete, add, or insert pages ahead of the massive spread, I dare you. See what happens. PDF of the Massive Spread. Sample.afpub Sample.pdf