1. Select the Column Section to be deleted by clicking the desired Column Section in the Concrete Column Section list box. That entry will be highlighted and the values for that section will automatically be entered into the other dialog box controls.
2. Click the Delete button. The Column Section will be deleted from the list box.

If the Concrete Column Section is currently assigned in the model, a warning message will be issued and the property will not be deleted. You must first delete or change the section assignment of all columns assigned this section property, then return to delete the section property.