OLIMPEX has three files: the indicator OLIMP.ex5 (levels on the chart), the helper OLIMP_SumOI.ex5 (the “Total OI” panel in a sub-window), and the service OLIMP_DataService.ex5 (background exchange-data loader).
- Download all three files from the Download page.
- In the terminal open File → Open Data Folder.
- Put the indicator and helper into MQL5\Indicators, the service into MQL5\Services. Click “Refresh” in the Navigator.
- Allow server access: Service → Options → Expert Advisors → “Allow WebRequest” and add https://olimpex.pro.
- Start the OLIMP service, drag the indicator onto the chart, then drag the helper onto the same chart (it opens in a sub-window).
- Enter a key — or use it free on a real account.
Levels appear a minute after the service starts. If something’s off, see the Troubleshooting section.