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Wow good question, Iv just taken to making modules to do this. Iv just been looking at other modules sorce code to learn it, it is very simple. One of the easiest examples I use that explaned alot on adding to the main menu was Brian's Fun Games module, it only hase like 3 pages. most of those only have like 2 to 5 lines of code. So my sugestion would be to download it to your local machine, extract it and just look at it. I think you will get all your anseres there in a matter of minutes.