I would like to hire an Amibroker Formula Language

I am working on my trading system and part of this system is what I call fibonacci extension levels. I know there is this tool within the amibroker program but I need to have a formula for that to integrate it with the rest of my code. What I exactly need is fibonacci three extension levels show up on the screen while amibroker is running. The levels are: 61,8%, 100% and 161,8%. I do not want to set this levels manually, I want it to be set automaticly, so that I can programm the system to take profit on one of those levels. I also want those levels to be visible on the chart. When there is the swing up the levels should appear up above the current price, and when there is a swing down, the levels appear below the price. This is what I need.