IF I change symbol, I understand I need to change the the start and finish price in the code? however, how far back do I go? any examples would be great. thanks
There isn't a fixed point that you go back to.
You have to calculate where the previous points are.
Start here:
https://usethinkscript.com/threads/simplertrading-voodoo-lines-for-thinkorswim.1939/#post-59489
https://usethinkscript.com/threads/simplertrading-voodoo-lines-for-thinkorswim.1939/#post-59548
and here:
https://usethinkscript.com/threads/simplertrading-voodoo-lines-for-thinkorswim.1939/#post-59589

