Need the player to input a code number? Maybe you're making a security lock, a hacking device, an ATM, an iPhone interface? It sounds like an easy thing, to make a numeric keypad UI, but making it work anywhere, using easily editable data from a spreadsheet, placed anywhere you like, well ... for $5 you'll save a few days of scripting and testing. Anytime you want the player to enter a pin number or code to proceed, you can summon up this handy keypad UI and let the player enter 4 digits which are checked against a master set populated by the game designer. The keypad code values, and which have been completed, save and load automatically per game session, and automatically populate to placed actors in the scene.