1. A computer-readable memory medium comprising program instructions for creating a graphical program, wherein the program instructions are executable to implement: displaying a first graphical program node in the graphical program in response to first user input, wherein the graphical program comprises a first plurality of interconnected nodes that visually indicate functionality of the graphical program, and wherein the graphical program is executable to perform the functionality; receiving second user input to configure the first graphical program node to perform a first operation; automatically generating a second plurality of interconnected nodes based on the second user input, wherein said automatically generating is performed without user input directly specifying the second plurality of interconnected nodes or connections between the second plurality of interconnected nodes; wherein the second plurality of interconnected nodes perform the first operation during execution of the graphical program.