> How do you create a fold out leaflet in PowerPoint!?

There appear to be templates for this in Powerpoint

You need more than a template if you're going to make a booklet by folding a piece of paper in 4 - half of the "pages" (quarter pages) need to be upside down.

In truth, I haven't tried this in Word either, although it appears to be possible in page setup. Maybe I just stopped using Publisher when I started getting duplex printers. Or even stopped needing silly layouts for school projects.