You can create a Read Self Action through an Activity Diagram or a Modeler pane.
To create a read self action through an activity diagram:
1. On the Activity Diagram toolbar, click the arrow in the split button that is to the right of the Accept Event Action button, click the Read Self Action button, and then on the Activity Diagram, click in free space or within an Activity Partition, Interruptible Activity Region or Structured Activity Node.
2. Type the name of the Read Self Action, and then press the Enter key.
Modeler creates the Read Self Action and on it creates the Result Pin output pin.
To create a read self action through a Modeler pane:
1. In a Modeler pane, right-click the Activity or Structure Activity Node that is to own the Read Self Action, point to New, point to Action Node, and then click Read Self Action.
2. Type the name of the Read Self Action, and then press the Enter key.
Modeler creates the Read Self Action and on it creates the Result Pin output pin.