Did you know that you can use any of the standard AutoCAD selection options when selecting objects during the FILLET command? Although AutoCAD does not automatically let you select objects by using the Window and Crossing Window selection sets as it does in other commands. You can still use any AutoCAD graphical selection technique if you type in the command line option. For example, draw two lines in a drawing that you would like to fillet. Then start the fillet command. When asked to select the first object type C (for Crossing). You can now select the objects with a Crossing Window. Other standard AutoCAD selection options can also be used including W (Window), F (Fence), WP (Window Polygon), and CP (Crossing Polygon).