Displaying multiple Keynote slides on one page?

I understand that it's possible to print multiple Keynote slides on one page (e.g. as a handout). However, due to the way my printer system works, the file must be sent as an email to the printer, and therefore it must look exactly how it is meant to before sending it (i.e. I don't have the print options).

Unfortunately, I can't figure out how to display multiple Keynote pages per page in a document (e.g. four per page), so that I can then send it to the printer for it to print it out as displayed. I can't see any option to export it so that it ends up being four slides displayed per page.

Is there a way to do this?

Thanks

Keynote Version: 7.3.1 (Mac)