Simulation Modes

At any given time, a GoldSim model is in one of four states(referred to as modes):

The mode that the model is in is clearly identified in the status bar (in the lower left-hand corner of the GoldSim window). In addition, the status bar takes on a different color in each mode:

This model is in Edit Mode. The status bar is blue.
This model is in Run Mode. The status bar is pink.
This model is in Run Mode, but is paused. The status bar is rust brown.
This model is in Result Mode. The status bar is green.
This model is in Scenario Mode. The status bar is orange.

You can only edit a model when it is in Edit Mode (and to a very limited extent, in Scenario Mode). When you create a new model file, it is in Edit Mode until you run it for the first time.

If you are viewing a model that is in Result or Run mode, editing will be locked (e.g., most of the property dialogs and menu items will be grayed out), although you can edit graphical objects such as text and images.