I don't know of a bot that allows you to customize the commands and I wouldn't advise modifying that bot unless you are certain you know what you are doing just incase it messes up core commands etc. But you can always add your own using On Text.
/help On Text
You will always get help on here from someone, I however must sleep now I have a baby to feed soon.
Good luck with the code, and I'll look at this thread again first thing tomorrow.