A past example of the free Keltner Re-entry script on an IQ Option chart: the LOWER marker and the candles after it. It is one historic example, no trade is placed, and it is not a promise.
Get the free script and read its code: https://iqoptionwiki.com/iq-option-scripts-library/keltner-reentry/
Import works in the desktop web traderoom, not the app. Try it on a Practice account first.