1. A computer-implemented method for selectively compiling a graphical program, the method comprising: displaying the graphical program on a display, wherein the graphical program comprises a plurality of interconnected nodes that visually indicate functionality of the graphical program, wherein the functionality includes first functionality implemented by a first portion of the graphical program comprising a first subset of the plurality of interconnected nodes; displaying a graphical indication in the graphical program, wherein the graphical indication visually indicates that the first portion of the graphical program, is to be prevented from being compiled and that the first functionality is to be prevented from being performed during execution of the graphical program; and compiling the graphical program, wherein the first portion, of the graphical program is prevented from being compiled whenever preventing the first portionof the graphical program from being compiled prevents the first functionality from being performed during execution of the graphical program.