Changing delete behavior through a script
Typically, you will want to create Scripts within a profile Package.
To change delete behavior through a script:
1. Right-click the profile Package, and select and select > > > .
2. Type a name for the Script, and then press the Enter key.
3. Open the Script's Property Pages, and then click the Items tab.
4. Click the 
Link button, select the item and diagram types for which you want to apply the on delete script, and then click OK
Link button, select the item and diagram types for which you want to apply the on delete script, and then click OK5. Click the Settings tab.
6. In the Script Type list, select OnDelete
7. Click the Script tab.
8. In the box, type the script you want to run when an item is going to be deleted.
If you want to change the text in a larger window with the Text tab available, click the Editor button.
For more information about working with scripts,
The script will be run whenever a valid item or diagram is going to be deleted.