The sum of buying and selling volume is NOT always equal to the total volume using the original script because the 2 columns are overlaid, not stacked
a) I wonder if there is any useful insight by showing the VMA, crossover, or something. Please share your thoughts.
2) Make the vol limit optional as its sole purpose is to scale the histogram to fit the main chart. This displays better the volume pressure on a separate pane.
3) Side note: if you want to display the volume pressure together with the candlesticks, you'll need to enable the scale from the settings. To put the indicator to the bottom, the best way I can think of is to set the chart's bottom margin to 0.
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