At the bottom right of the map workspace in desktop Mapping, there is a small Preview window. This shows a small version of the whole map.

This can be used in two ways - to simply see where you are in relation to the whole map and also to navigate around the map. 

Users can use the Preview pane to navigate the map by moving the cursor over the preview window until the double-headed arrows appear, then holding down the left mouse button and dragging the internal black outline around the whole SucessMap.

This Preview can be toggled on and off with the up arrow on the far bottom right of the page.