I have been cobbling together a fibgrid similar to the ones offered by TTM. I have attached a good working copy but it still requires manual selection of the swings and only uses a single swing where multiple swing retracements may be more useful. If anyone can assist me in automating the selection of swing lows and highs as well as increasing the number of swings used I would be grateful. Please feel free to hack it up and streamline it as you wish all I ask it that you share your improvements with me so that I can try them out as well. Thanks, I hope this helps.

I copied and pasted your Fib (ver 2) into my ThinkScript. No errors, per se, but I put in on a few different time frames of /ES and /YM (emini futures) and only got straight lines at the bottom of the chart. Do you know why? I'm not a programmer, but can make some changes after a lot of struggle and some guidance.