https://iblog.iup.edu/gyyt/201....6/06/07/all-about-bu
MT4 doesn't limit you to its built-in indicators. It allows users to add custom indicators built using the platform's MQL4 programming language. Traders can create bespoke tools to fit their unique trading strategies or download third-party indicators from an extensive library. This flexibility ensures your trading tools evolve with the market's changing dynamics.