Onyx can receive TradingView alerts via webhook and execute them in your real account using the Copy EA you already have installed. No need to change the EA.
1In Onyx, open TradingView and enable it for your account.
2Copy your webhook URL and paste it into your TradingView alert (Notifications → Webhook URL).
3Copy the JSON message and paste it into the alert Message field.
4Set your default lot, max lot and allowed symbols.
5Send a test signal to see the execution.
The webhook token isn't the EA key. If leaked, it only allows sending signals with a lot cap, and you can rotate it with one click.