I notice that on some nodes, like ObjMerge or SopImport, I can point to an ObjNode (including sopnets), and it will figure out which child sop node to get the geometry from, somehow parsing between any output nodes and render/display flags are set in its the children.

Is this exposed through HOM at all? I checked the available methods for hou.ObjNode but this logic doesn't seem to be available…