Deleting a Stage
Note: If you leave the Stages tab after deleting a stage and before you have clicked Save, the deletion will be discarded.
To delete a stage
1. On the Business Processes page, locate and edit the process model that you want to work with.
2. In the Process Stages and EDA Events window, click the Stages tab.
3. Click the option button 
next to stage name for the stage you want to delete. To clear your selection, click the option button again. 4. Click Delete.
5. Click Save.