The uniqueness of this indicator lies in the volume accounting algorithm: accumulation occurs directly for the selected period without reference to the beginning of the day. The last bars can be excluded from the calculation, then the current data will have less influence on the significant levels (volumes) formed earlier.
For a more accurate calculation, data from the M1 graph is used by default. The step of distribution of price volumes is regulated. By default, the right border of the display is set to the bar corresponding to the beginning of the data used for analysis, but if necessary, it can be set to the bar you need. The length of the volume bands shown (the right border) is regulated by a coefficient, and it can also be shifted left or right to 0 (the current) bar or mirrored with reference to the current bar.
MT4 https://www.mql5.com/en/market/product/15009
MT5 https://www.mql5.com/en/market/product/39311
