Add 1H candles on 1M or 1D on 30M
Overlaid candles feature wicks and multiple display options to customize appearance.
Add the indicator multiple times to get MTF (multiple time frames) all on one chart.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.
res = "6H"
to remove the option and get 6H candles