Nodes and paths are space markup elements that define the locations of agents in the space:

Nodes can be connected with paths. Altogether they compose a network. In the network, node defines a place where agents may reside, while paths define the routes that agents may take when moving from one node to another. When agent moves inside a network, it always take the shortest route.

There are nodes of three shapes at your hands:

Rectangular node. Use it to draw a rectangular node. 

Point node. Use it to draw a transit transportation node in a network. When you connect two paths together, a point node is automatically created in the connection point.

Polygonal node. Use it to draw a node of complex form.

You can select nodes as Agent location in the following Process Modeling Library objects's properties: Delay, Queue, Match, Combine, Resource Pool, Seize, Service, Batch, RackStore.

In the following objects you can select a node as movement destination: SourceSplitAssemblerSeizeServiceEnterMove ToBatchResource Send ToRack Pick.

To define particular waiting points inside rectangular and polygonal nodes, use attractors.