The Properties panel of the Geometry tab enables you to set the properties of selected elements, or define default values for element types.
Click on Properties. The Tools tab of the Study Task pane displays the Edit properties dialog for any element selected in the Model pane.
If more than one type of element was selected, the Select entity to edit list appears.
From the drop-down list, select the property to be defined. The Tools tab of the Study Task pane displays the property dialog for the chosen options.