Consider this: you have a wonder Renko strategy in TradingView, and a backtested quant strategy in Amibroker. However you may like to use multiple strategy platforms at same time, like TradingView, Amibroker, MT4 etc.
Currently you cannot trade from multi-platform using one APIBridge instance. Moreover you will need to setup multiple-instances of APIBridge, with different logins and different accounts. See here how to set it up.
IMPORTANT: If you have APIBridge Extn installed in Chrome, it will block connection with Amibroker/MT4 etc. You need to uninstall extension and restart computer to switch from one platform to another.
Along with uninstallation of API Bridge in Chrome or any other browser, you need to clear the Cache also. Only then API Bridge will function normally.