Never used it but I do have the indicators - it's in my list of stuff to look into. This is longer than my list of things currently looking at & growing fast.
I do not know if it is available on esignal but the guy that set it up does make the code available in the document describing it on his site. The code is in TradeStation EasyLanguage but if you know your way around esignal I am sure you could set it up quite quickly.