Oh I see what you mean, the real name of the question should have been, how a node check if he has a parent?
Well, I have a UI Node which is saved as a separate scene, it needs to know what node is the
WORLD, to drop items you selected in the inventory.
This works if I load my main map and use direct path to this node, my map scene is structured like so :
The node in question is
UI_Master and the node which I drop items is