Need help in converting this script into a ScriptUI string panel?

Hi there,

I'd like to work out the most efficient way of converting this script into a string based Script UI panel.

Here's the script itself:

http://omino.com/pixelblog/wp-content/uploads/2011/12/om_midi.jsx

Trying to get the overall script to be layout out with this structure:

AfterEffects-ExtendScript-Extensions/ScriptUI Resource String Reference.jsx at master · VinhSonNguyen/AfterEffects-Exten…

Can't figure out where to start, can someone give me a hand in the right direction or if it's easier, help convert it for me?

Thanks.