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A dummy node is a zero-sized node that has no visual representation. It is used to organize the other nodes into a hierarchy. Usually the dummy node serves as a parent node for a group of nodes of the same type. The dummy node, though invisible, has the same common options as other nodes: it can be transformed (moved, rotated or scaled) and have a property assigned.
Creating a Dummy Node
To create a dummy node via UnigineEditor, click Create -> Node -> Dummy on the Menu bar and then place the dummy node somewhere in the world.
Organizing Nodes Hierarchy
To organize nodes in a hierarchy, in the Nodes panel, hold Alt and drag necessary nodes into the dummy node in order to make them the child nodes.