I started a tutorial, because I am a newbie and I find it's hard to make an add-on for info is spread and a bit unclear.
See the first dummie version of the doc as PDF.
http://www.angelfire.com/scifi/cosmos81 ... iaDocs.htm
I just converted to PDF for easy downloading, but I work it as RTF.
So if you contribute, please make it RTF. Thanks.
Email is specified at the link I provided.
Thanks.