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Each graph has a build pose node, a pre build pose node and a post build node. These three nodes are fake nodes and don't actually exist in the agent node network. They are created just for having a visual representation of what's happening in under the Atoms enginehood.
The build pose node has only one pose port. That port value represents the final pose of the agent at each iteration.
The pre and post build nodes can have a variable number of inputs. All nodes connected to those are evaluated sequentially. Nodes connected to the pre build pose node are evaluated before the node network connected to the build pose node, while all nodes connected to the post build node will be evaluated after that.
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