Extended Heiken Ashi
This is an extended version of Heiken Ashi indicator with the ability to average (smooth) the values for the specified period of bars and select the applied price: considering "Open price" or not. The description is provided in the parameters. Three screenshots are displayed below: standard version (1 bar), 3 bars and 5 bars.
МetaТrader 5 version with the ability to test: https://www.mql5.com/en/market/product/7327