Corona Code Generator is a tool that allows you to do exactly the same. It will generate code for you based on the few choices you make from the GUI front end. The code is generated ready to copy and paste into your apps.
The app is Free and shall attempt to remain free. It is a 64-bit app, so it will run on Leopard and Snow Leopard, it *might* have issues if you run it on Tiger or earlier OS X
