The Block Begin Compile works in concert with the Block End Compile to separate part of a node network from the rest of the graph.
Block Begin Compiles form the input into compiled block and mark the transition from normal SOP cooking into the compiled subgraph.
This node will rarely be explicitly placed. Instead, the Compile Block tab menu entry will generate a pair of block nodes in a single operation.
The path to the Block End Compile representing the end of the compiled sub-graph.
Create Block Begin Node
Creates a clone of this node with the appropriate block path setup.