Look at the Masterclass Tutorials in CUAmiga February 1994 through to May 1994. Tutorial One shows you how to create a candlestick and how to use colour spreads using the Ranges requester. Probably find the magazines here... I was going to put that first tutorial on the website. Probably later.
I added those pages to the website. May be of interest.
http://www.scuzzscink.com/amiga/scuz...ril18_2101.htm