Hi Guy, sorry no - an unfolding mechanism is much more complex than what you're describing, it's way more work than can be done in a simple script, it would take a considerable amount of time for me to develop it so I do not expect to have that anytime soon.

There are various other already existing tools you can use for unfolding though, you will need to use one of them in combination with MoI to get that kind of a job done.

It looks like you already are familiar with one for SketchUp, you might also want to check out Lamina Design, check out these previous threads for some links to some software that can help you do that:
http://moi3d.com/forum/messages.php?webtag=MOI&msg=5550.1
http://moi3d.com/forum/messages.php?webtag=MOI&msg=5463.1
http://moi3d.com/forum/index.php?webtag=MOI&msg=3042.8


Right now MoI is not set up to manipulate mesh objects during modeling time, only for export, so what you are asking for would involve adding quite a lot of mesh processing code into the modeling environment of MoI, making it a considerable job.

I think Form-Z also has some tools for polygon unfolding as well if I remember right, you might also look there.

Things that involve processing polygon mesh data are basically outside of the scope of what MoI is designed to work with - MoI can generate polygon mesh data for export to a polygon mesh handling program but if you need specific functions to process the mesh data like for rendering or in your particular case unfolding that is something that you'll need to use a program that is focused on processing polygon mesh data to handle for you.

- Michael