The Unpin tool unpins a locked element. You can then move the element or delete it without being prompted. You can select multiple elements for unpinning. If some of the elements you select are not pinned, the Unpin tool has no effect.
Do one of the following:
Select the elements to be unpinned, and then click Modify | <Element> tabModify panel (Unpin).
Click Modify tabModify panel (Unpin), select the elements to be unpinned, and then press Enter.
When you click the pushpin control in the drawing area to unpin an element, an X displays near the pin control to indicate that it is unlocked.