Use the Additive Graphing Mode option to graph a node and add it to an existing network graph. Enable this option, select a node and click one of the
,
and
icons to graph your selected node and add it to the existing network.
+ one of the
,
and
icons to graph your selected node and add it to the existing network Example
button to graph its input connections.
button. The result graph is as follows:

Only the input connections are graphed for the sphere but both the input and output connections are graphed for the cube.