Echoing Function App results to the stack?

[John Colvin]

I was wondering if there was a simple direct way to echo results like Root, Intersection, and Extremum in the plot mode of the Function app to the RPN stack without having to spell these variables out on the Home command line. I know I can write a simple program to accomplish this but I was hoping there might be some key or key combination that does this. The 50G did this automatically.