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Blahtech On MQL5 Marketplace:
Metatrader 4 Indicator Installation Guide

Blahtech Indicators are sold through MQL5 Marketplace. Downloading demos/renting/purchasing the indicators is best done from within MetaTrader platform. Please follow the installation guide below.

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Step 1. Open your MT4 Platform

Step 2. Login to your MQL5.com community account. If you don’t have one yet, you will have to create it first. If you already have an account, skip to Step 4.