Hi! As per subject I would like to suggest / vote for the addition of the Traders Dynamic Index (TDI) indicator.
I've found it to be a very useful indicator that gives a lot of interesting output, ie for machine learning to train on.
Some further info about the indicator can be found here: https://blog.roboforex.com/blog/2020/05/28/traders-dynamic-index-indicator-description-and-trading/
Thanks for considering!