Is there an example of having a drag and drop indicator? (where the part will land)

GoJS
1

image

As per the example above, which demonstrates when dropping a row it should show an indicator of where it will go.

Are there any samples or pointers in the right direction?

2

Implement https://gojs.net/latest/api/symbols/GraphObject.html#mouseDragEnter and mouseDragLeave event handlers. Somewhat like in the Org Chart Editor sample nodes.