I want a window to put a price list in.

My character is a merchant and I want to have a little window that contains a price list. I read and read trying to figure it out but got all confused what with hot spots and talking about plugins???? and all. I just want a little window that I can type in a price list. I would like a second window that I can put a basic coin calculations. I may want several windows.

Please give me step by step instructions on how to create these little windows and how to use them. I don't want to see them all the time, but would like to be able to bring them into view when I need them. I would like the little window to place itself on my game screen in the upper right hand corner.

I may do this in mushclient?

well one of the first things need to know. is are you going off output from the game or is this just something your are going to manually type in when you need?
if your going off output need a sample or two. will help with triggers and more specifically what your trying to capture.
if your going off what your manually typing into it. best bet go for a notepad window using mushclient.
either way need a few examples of what your trying to accomplish