Hi,

That should be in volume indicators topic.

p.s.
I tried to copy from tradingview made by LonesomeTheBlue. Its cumulative delta volume, with four moving averages. Link to that indicator at tradingview is in the upper part of the code, commented out.
It doesnt have heiken ashi and line mode, and there might be more differences. I tried my best, so please enjoy, or skip it.