Change Element Type
You might find that an object that you have represented as one type of element would be better represented as another type. The 'Select Element Type' dialog allows you to change the type very quickly and simply.
Design > Element > Manage > Change Type
Show > Window > Properties : In the Type field of the Properties window, click on the button
Start > Windows > Properties : In the Type field of the Properties window, click on the button
On the 'Select Element Type' dialog, click on the 'Element Type' drop-down arrow and select the new element type from the list.
Click on the .
The target element is transformed into the required type.