Please follow this link to get all the details about MELANIE software : MELANIE Blog
MELANIE is a FREE powerful tool to help you build your User Interfaces for Maya. Until now, you had to program them with MEL commands. Now, you can easily do the same with only a few mouse clicks ! When the design of your window is done, click only on a button and the corresponding MEL script will be generated !
This software contains also a script editor with syntax coloring, letting you program the behaviour of your interfaces.