Okay, so how do I assign a certain button to be the match to the flame, per se. More or less, I want to assign an "enter" or "calculate" button to cause the calculations.

Thanks Ian, that fixed it! I have another question about keyboards. How can you code the panel, so that you can scroll down to the bottom of the app when the keyboard is up? Right now, the keyboard covers the bottom half of the panel and I can't close it.