ORB MultiSession is a professional indicator designed for intraday trading that automatically plots the Opening Range Breakout (ORB) levels for the Asia, London, and New York sessions. It calculates and displays the High, Midpoint, and Low of each session's opening range, extending these levels dynamically throughout the trading session. The indicator features automatic breakout detection, pausing the extension of levels after a confirmed breakout and resuming if the price returns inside the range. Customizable settings include session enablement, start and end times, and independent colors for each session’s levels and boundaries. It supports optional vertical session boundary markers and adjustable line thickness. Suitable for Forex, indices, gold, crypto, and other intraday markets, ORB MultiSession aids traders in identifying key intraday support and resistance areas, facilitating breakout and retest strategies, scalping, and opening range breakout trading. The indicator is lightweight and optimized for real-time use.