How do I delete or remove a map?

If you are in the middle of setting up the Area Map, simply click the Back button on the bottom-left. This will lead you back to the point where you first uploaded or drew your map.

If you are at the point where you are actively scanning a zone, you will need to select Survey > Zone > Remove from the menu bar. This will delete both the map and the zone settings you have created and you will need to start again by creating a new zone and uploading or drawing a new map.