The execution flow from one executable component to another is achieved by connecting these components in sequential order with a connecting line.

The Hub is a non-executable component that is used as a non-functional connector that allows the connecting lines to be drawn around interfering component in the Workspace.

Please Note:
The Hub
component may not be used as a connector between the Retrieval component and the More rows found? conditional component, or between an Update, Insert, or Delete component and its Success? conditional component.

For a detailed explanation of  dragging the connecting lines, see Connecting objects in a Procedure.