Once you have created a macro, you can modify its contents using the EDIT command. For example, suppose you want to change the size of the rectangle you created in Recording a Macro to measure 38x22 instead of 40x20. To do this, first pick EDIT and then pick the macro RT4020. Creo Elements/Direct Drafting displays the macro string to be edited. Type over the old values with the new and press [Enter].

The next time you use this macro, the new rectangle is drawn. (You may wish to change the macro's name to reflect the new size.)