- Gaps, from the open/close or the high/low value to the nearest open/close or high/low value.
- Price extensions of one or two candles from a preferred starting point (open, high, low or close) to a final point (open, high, low or close). The two-candles mode includes an optional to help you visualize the first and the last point of the measurement.
The script will plot a label with a percentage when the extension reaches the value you set. Unless you choose to track the one-candle price extension, the label will always be displayed on the high/low value of the second candle.
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.