In the Input menu, the default value of Location is 1, and HeikinAshi can be seen overlapping the candle.
If you modify the Location value, you can overlay it separately with candle to compare. (In this case, the HeikinAshi value is different from the actual value, so it is recommended to use it to identify the trend.)
Also, if you move HeikinAshi to a new pane, you can use it as an auxiliary indicator at the bottom.