Using Magic Model Analyst® (Cameo Simulation Toolkit®) has many benefits. Of course, it's usually associated with making executable Activity Diagrams and StateMachines (as well as handling SysML Parametrics). Dr Darren says:
The Behavior modelling skills you develop using Magic Model Analyst® (Cameo Simulation Toolkit®) for executable Activity Diagrams will also inform your "freestyle" modelling of non-executable "analysis" Behavior diagrams!There's no better way to learn how to really use the Activity and StateMachine notations than to start simulating. The more you do it, the more consistent, effective, and useful all of your Behavior diagramming will become. You don't have to master every capability at once, it has incremental benefit!