What is a trend in MT4/5?

What is an indicator in MT4/5?

What does "trading has been disabled - disabled on server" on MT4/5 account mean?

What are trend indicators in MT4/5?

What are oscillators in MT4/5?

What are volume indicators in MT4/5?

How do I install an indicator on the chart on MT5 desktop application?

How can I install an EA/indicator in the MetaTrader 5 terminal?

How can I install and enable an Expert Advisor (EA) on the chart in MetaTrader 5?

What is the Strategy Tester in MetaTrader, and how does it help in testing Expert Advisors (EAs)?