...
The topology panel shows the topology of the children of selected node, both when you select the parent node itself, and when you select one of the child nodes. The components and connections are based on the Topology nodes and previousNodeIds (and not on the content of the workflows linked to those nodes). When a child node is selected, the corresponding box in the topology is highlighted. Likewise, you can also select a child node by clicking on a box in the Topology panel.
...