Origin cities feed three connecting hubs before passengers scatter across the world. Grab any node (mouse, touch,
or pen) and reposition it: connected flows follow live, so you can untangle the hubs into the layout you want. Set
with draggableNodes: true. A tap still triggers click-to-focus; only a real drag moves a node.
✈️ Drag a hub (Dubai, Singapore, Frankfurt) up or down to rearrange the interchange.