The indicator draws an arbitrary second time frame on the chart.

In settings:

Number of days – if you set too many days, it may take a long time to calculate.

Timeframe in seconds.

Select to display bars or candles.

I compared it with the charts of the reference utility, the indicator seems to draw candles correctly.

You must understand that this is not a full-fledged second chart, but just an indicator.

You cannot hang other indicators on it. If you install other indicators, they will show the values of the chart timeframe, not the second one.