These two PDF's from the FRB's website are worth a read, they give a good background to how the forex market functions. I would advise any noob to read the entire document found here. Its an easy read and provides an invaluable insight to how the ...
Not sure if this is what you want - but this indi calculates the daily range for whatever number of days you set, and displays it in the top left of your screen.
Good Reading — I've attached an excellent PDF regarding trading psychology, I hope you find it as useful as I have. Found it somewhere on FF, but can't remember the source.