There is an option for Higher Time Frame. if you choose "Auto" then Higher Time Frame calculation is made by the script. If you choose "User Defined" option and then you can select Time Frame.
You better use this script with other indicators such as , Momentum etc.
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.