Accessing Nodes and Node Systems

Describes how to access and modify an already implemented node system instance.

Accessing Information Node Graphs	Describes how to add, remove or access a graph.
Navigating Node Graphs	Describes how to navigate inside a node graph, find a specific node, iterate over ports or retrieve ancestors of a node to gather information.
Reading and Modifying Node Graphs	Describes how to read and write information like selections, connections or animations in a graph.