Installing the EA

In MetaTrader 5, open File → Open Data Folder. This opens the terminal's own folder, which is not where the program is installed.

Go into MQL5 → Experts and put the .ex5 file you downloaded there. Then restart MetaTrader, or right-click Expert Advisors in the Navigator panel and choose Refresh.

Harmonizer verifies its licence over HTTPS each day. MetaTrader blocks outbound requests unless you list the address, so this must be done before the EA will run. Night Swimmer is free and skips this step entirely.

Open Tools → Options → Expert Advisors, tick “Allow WebRequest for listed URL”, and add both addresses below. Add both: the second is a fallback used when the first is unreachable.

In your dashboard, open Licences and add the MT5 account number you will run the EA on. You have ten slots and can move them whenever you like.

Wait about five minutes before attaching the EA. The licence is served from a cache that takes a few minutes to catch up, and attaching too early reports an invalid licence even though everything is correct.

Open a chart for one of the recommended symbols on the recommended timeframe, then drag the EA onto it. Make sure Algo Trading is enabled in the toolbar.

Harmonizer trades several symbols from a single chart — you do not need one chart per pair. Set the symbols you want in its inputs instead.

Check the Experts tab. A working licence prints “Licence Valid” and the expiry date.

Both EAs need to be running to manage their positions. A laptop that sleeps, or a home connection that drops overnight, will leave trades unmanaged.

Any MT5 VPS works, including the one built into MetaTrader. This matters most for Night Swimmer, which trades while you are asleep.