To Delete Template Properties
In the Element Templates dialog (
), expand the open DGN file and the template group.
Select the template whose property you want to delete.
If the property you want to delete is not visible in the Properties pane, click the downward pointing arrow on the right side of the property's tab.
In the Properties pane, right-click the name of the property and select Remove from the pop-up menu.
The property is deleted from the template.