GRAPH Editor: Creating a Transition
To add a transition to your DES, make sure you have Selection mode enabled.

Enable the Transition component from the left pane.
To start a transition, click and hold on the start or from state of your transition and drag your
mouse cursor to the stop or to state. You will notice a transition line follow your mouse cursor until
you release your mouse click at the stop state. Now the transition line will connect the two states. If you
only click on your start state or drag your transition line to the same start and stop state you will create a self-loop.
Once you place your transition line, the DES Transition Editor dialog box will appear.
This is where you select the event for the transition. If you click the Self-transition checkbox, a self-loop
will be created and your To state will now match your From state. When you are done selecting the
event, click OK and the transition will be added to the Transition pane. You will also notice a new
label appear next to your transition line with the event name you selected.