Navigate to Home tab. Select New SWMM Project from the drop-down list of New Project button
Right-click on the “Scenario1” under Drainage Network Scenarios in the Project Manager tab. In the context menu, choose Rename.
The name of “Scenario1” will become editable. Give a new name “undeveloped”.
Click the Properties tab in Project Manager which by default is on the right side of the VOSWMM main interface. Make sure that the Unit is set to CFS, the LinkOffset is Depth and the Show Background is checked on.