Open Instance

The Open Instance command displays an instance of an actor, in contrast to the Open Actor command which displays its class definition. If the instance is a composite, then the composite is displayed in a vergil window. If the instance is atomic, then a table showing the current parameter values is displayed.

For atomic actors, the rows of this table are white if the parameter is fully visible to users of the actor, pink if the parameter is an "expert" parameter (visible only if expert mode is set on the actor), and grey if the parameter is not visible to the user. Here "visible" means that it shows up in the Configure dialog. The sizes of the columns can be changed by dragging the boundary between columns in the header.

The expression shown is the value set in the Configure dialog. The value is the result of evaluating this expression. The syntax for expressions is documented in the expressions documentation.