Menu Option: General: Scenarios (also available on the Main Toolbar)
See also: Scenarios, Understanding Expression Inheritance, Analysis View

Use the Manage Scenarios screen to create, delete, organize and set the properties of the scenarios in a LEAP area.

Understanding Expression Inheritance

Nearly all data in LEAP are specified as expressions for a given variable at a given branch in the LEAP tree.  These expressions are entered in LEAP's Analysis View and different expressions can be entered for different scenarios (or for different regions in a multi-region area).  To minimize data entry requirements and to make data management as easy as possible, scenarios are organized in a hierarchy so that you need only enter data in one scenario if it differs from the data entered in its parent (ancestor) scenario.    Before describing the scenario manager, it is important to first understand the way that expression inheritance works in LEAP since this is fundamental to understanding how scenarios help you manage data.    See Understanding Expression Inheritance for more information.

Using the Scenario Manager

The Scenario Manager screen is divided into three different areas.  On the left, the Area's scenarios are listed in a hierarchical tree showing the main scenario inheritance structure.  Click on a scenario in the tree to edit it or to add a new scenario beneath it.  Use the tree check boxes to set whether you want results to be shown for each scenario (in the Results, Energy Balance, Overviews and Summaries views). Unchecking a scenario will speed-up calculations, but prevent you from seeing its results. Unchecking a scenario will not erase any data associated with the scenario - it simply omits the scenario from results calculations.  Use the All and None buttons at the foot of the screen to quickly check or uncheck all scenarios. On the top right of the screen, you can edit various additional properties of each scenario as follows:

The Tool Bar

The tool bar at the top of the Scenario Manager gives you additional tools for managing scenarios: