How to Convert One Element to Another
1. Select an element you want to convert to another type. (In this example Activity Final Node.)
2. Click on Convert menu item in Element menu.
3. Choose a new type from the drop down list. (In this example Connector.)
4. Confirm the chosen element type with OK button.
5. The element is converted to the new type now. (In this example Activity Final Node turned into Connector element.)