Zones are a way to organize your canvas into different nested regions.
You can create a data zone by selecting it in the dropdown next to
Markdown and drawing it onto the canvas.
Draw it over the area you want to be covered by the zone; you can resize it later if you wish.
Change the title or color of the zones you created.
You can move a data zone by grabbing the left hand bar. Any cell within the zone will automatically move with the overall datazone.
Zones can be nested; you can put any number of overlapping areas on a canvas.