The Main Settings pane is used to specify parameters relating to the input, the time range over which the analyses are to be run, which analyses are to be run, and the output.
The Actuators and External Loads pane is used to specify parameters relating to the external loads applied to the model during analysis and whether or not an additional set of actuators should be added to the model.
The Analyses pane provides a means of adding, removing, and editing the analyses that will be run.