Zen Framework v5 (zgf5) themes also have built in support for creating a one page site.

One page sites (as the name suggests) use a menu at the top of the page to smooth scroll to various anchor points on the page. 

The page is divided into rows of grids that can be viewed on the layout tab in the template settings - eg grid1 refers to grid1 to grid4, grid2 refers to grid5 and grid8.