It is calculated on the that contains about 260 days of market and I recommend using it on that chart.
In the properties under "Style" you can turn on or off the chart of what made the price 1, 2, 3, 4, 5 years ago or the average of the last 5, 7 or 10 years (if there are enough data).
Under "Input" you can decide the offsets of the various charts, or horizontally align the various charts to find the most similar configuration to what the price has done, so as to understand if the price is following the of a few years in particular, the vertical alignment is a decimal number that allows you to raise or lower the chart in percentage to better align it with the price.
How to use it:
1) under "Properties" --> "Style" deselect all the last years charts and leave just the actual price.
2) select just the last year chart.
3) under input you have the parameters to change to align the last year chart on the actual price chart, the indicator by default show the forecast 100 bars,
align the horizontal offset and the vertical alignment to put the 2 charts together, you have to find the macro trend, not the micro, of the last 5 - 6 months.
4) repeat it with another chart, for example 2 years ago
5) then repeat it with all the charts, if there are no macro trend as the actual price deselect the chart
6) when you find a good overlap look for the candle chart to find a good level to enter.
That's it that's all.
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.