I want the metric for currency strength to which I got used to when I was trading manually. It's a number between 1.0 (weak) and 8.0 (strong). This metric seems very popular. I already started looking into how Zorros Currency strength functions work. As far as I can tell it's really only a framework that can take any metric through the ccySet() function. Has anybody tried to use the Currency strength functions to get this metric? Check this: https://www.forexfactory.com/showthread.php?t=390132
The first post contains a link to an Excel Spreadsheet that contains the calculation.

If nobody can help, I will succeed for sure and post the code here.