The Zoom exploration tool lets you explore the map more effectively.Zoom tool: Zooms in to the selected item. If nothing is selected, the tool is unavailable. You can also zoom by selecting View > Fit Selection
Fit tool: Zooms out to fit the whole map into the window. You can also fit the map by selecting View > Fit Map
Automatic: Automatically zooms in to show the selected items, and out to fit the map when nothing is selected. Clicking away from the selection automatically zooms back out.
Inspection Tip: the Browse Tool
When using the map Exploration Tools, instead of using the default Selection Tool, try using the Browse Tool. No sizing handles will appear and the nodes will not move.