When editing diagrams, Enterprise Architect supports multiple undo levels for moving, re-sizing and deleting elements, and for deleting connectors. If an Undo action is in error, you can redo the action to reverse the Undo.
There are three ways to redo the last action:
| · | Press [Ctrl]+[Y] |
| · | Select the Edit | Redo menu option |
| · | Click on the Redo toolbar button  |