Initially when the simulation case is created the default case type is Select mode... and is activated for the modeler to instantly change to a valid simulation case type. The simulation case type can be set in the second column of the Project tree panel window. The "Run button" automatically disables when no case or case type is selected. Selecting the second column or creating a new case configuration, a selection box will pop-up. The following simulation modes can be selected:

•Design
Perform a design point calculation.

•Design Series
Perform a series of design point calculations. Using this simulation case type requires a case components library component supporting DP series calculation.

•Steady-State
Perform a single off-design steady-state calculation.

•St.St. Series
Perform a series of off-design steady-state calculations. This requires the use of a case component or enabled transient input data.

•Transient
Perform a transient calculation.

Note that the case type is part of the project data, not part of the model data for which changes require action to save to XML. Case type is directly saved to XML from the GUI: it is therefore seen on the left in the project tree. Only when a change in case type has required a model data change (such as when changing to non-series type and series data had been deleted) you will be prompted to save the case.