The Expert Advisor fills the missing bars on the chart with "dashes" (Dojis) — bars which have O=H=L=C.
The exhaustive description is available in the article "Free-of-Holes" Charts.
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/8292
The Acceleration/Deceleration Indicator (AC) measures acceleration and deceleration of the current driving force.Average Directional Movement Index (ADX)
The Average Directional Movement Index Indicator (ADX) helps to determine if there is a price trend.