The Subtract Shapes option removes the intersecting portions of the second selected shape from the first figure selected in the drawing canvas. This option remains disabled until two figures have been selected.
To Subtract selected shapes:
Select the shapes to be combined. In this example, the circle is selected first.
Press on the Selection Button to open the Selection Menu.
Press on the Paths Submenu.
Press on the Subtract Shapes option.
The selection of two non-intersecting shapes causes the second shape to be removed entirely.
The following images display two selected shapes prior to and after using the Subtract Shapes option.