HLC3_Z

This indicator uses a single price point for each session (HLC3 by default) to draw waves.
This helps to filter out small or high frequency fluctuation in the price, and focus on the trend.
There are also options to display cumulative volume for each wave, or to overlay the price source to draw the wave on the chart.
I find using this indicator helps with finding the wave structures or the head or bottom structures such as head-and-shoulder.