Adding a requirement to a requirement diagram (SysML)
1. In an appropriate pane, locate the Requirement you want to add.
In the Requirements pane, all Requirements are listed in the Requirement folder.
2. Drag the Requirement from the appropriate pane to the diagram.
Alternatively
1. In Modeler, open the Requirement Diagram.
2. On the diagram's tab, click the Requirement button, and then right-click in free space on the Requirement diagram.
3. Select the Requirement you want to add to the diagram, and then click OK.