Creating Child Nodes
To create child nodes for the parent node:
- Click and drop a role node on the work area. This is the parent node.
 - Click and drop another role node on the work area. This is the child node.
 - Click on the child node and drag onto the parent node.
 - Click anywhere in the work area. The parent-child relationship is established between the two nodes as shown below:

Figure 263
 - Enter values for properties in the node property sheet for the nodes.
 - Click Apply.