Hava, your question is a little unclear. So, just some general advice.
When I was first getting into tracking, I often found that the best way to learn how to do something was to find a track where someone had already done what I wanted to learn, open it up in a tracking program, and study it directly to see how they'd done it.
I also highly recommend reading the help file. There's a reason why RTFM is such a popular acronym.
Also, once I'd gotten used to my program of choice, I still found it helpful to go back and re-read through the help file top-to-bottom from time to time, and I kept doing that even when I'd been using Impulse Tracker for 4 years. I learned something new everytime, something I'd always overlooked before.