If there is more than one map, a cascading menu appears with the different map names. About Mapview Selecting About under the Help menu displays the version of Mapview you are using and the GDB staff responsible for its creation and maintenance. Controls Single click on a label selects the marker, and de-selects any other markers or maps which are currently selected. Shift-click on a label adds the marker to the current selection. Double click on a map title gets the GDB entry for the map.
Arrow keys are shortcuts for the scroll buttons in the top right corner of the window.
They scroll the display by the amounts specified in the horizontal and vertical increment buttons. The Page Down key is the same as the Down arrow key. The Page Up key is the same as the Up arrow key. The Home key scrolls the display so that the top left corner is in view. The End key scrolls the display so that the bottom right corner is in view.