Many of the menu items in the drop down menu bar at the top of the screen correspond to one of the icons or buttons across the top of the display window or in one of the toolboxes in the Tools panel on the left.
Icons across the top of the screen comprise the standard Windows File, Edit, View and Help commands. The drawing, construction, calculation, and other tools are displayed the left side of the drawing window. This Tools panel can be shown or hidden by checking / unchecking Tools option under View menu or by clicking on the Show/hide tools button 
on the main toolbar.
The status bar at the bottom of the window displays the following (from left to right):
<Menu Help> <Current Mode> <Cursor Coordinates> <Angle Mode>
