To Change a Node’s Technique

Choose a node on the graph and hover over the Technique Selector field. The Technique field color changes.
Click the current technique.
The drop down menu opens listing all available techniques for the node.
Scroll in the list and select the desired technique.
The technique changes to a new selected technique and the input ports may effect.
The node status indicator might change to Incomplete state, demanding to set the port values/wire connections to complete the node.