1. A medium, configured to perform: displaying a first node in a graphical program; receiving first user input invoking display of a plurality of function type options for the first node; displaying the plurality of function type options for the first node in response to the first user input; receiving second user input specifying a function type from the plurality of function type options; determining program instructions based on the second user input, wherein the determined program instructions are executable to provide functionality in accordance with the specified function type; and associating the determined program instructions with the first node; wherein, when the first node executes in the graphical program, the determined program instructions are operable to execute to provide the functionality in accordance with the specified function type.