Double-click where you would like to attach the marking. The Expression
Selection dialog box appears.
Choose the desired category on the left and then click the Create button at the bottom of this dialog box. The Expression Designer dialog box appears.
Click the Shape radio button then Create to enter the Shape Designer. Alternatively, click Select, choose a shape, and click Edit to edit an existing shape in the Shape Designer. (There are various other ways to enter the Shape Designer. See
Shape Designer dialog box.)