Hello! I hope this is not a duplicate post. It's a while that I didn't update my local repo from the last master. 

I used to download locally tickers via Toolbox with the command QuantConnect.ToolBox.exe --app=GDAXDownloader ….

I've noticed it does not work any more due to a refactor:

https://github.com/QuantConnect/Lean/pull/6213
https://github.com/QuantConnect/Lean/pull/6391

From this last one description says Scale LEAN to a large number of brokerages without overhead on LEAN. Separating brokerages into plugins meets the purpose.
Toolbox console help is still the old one, using the command I mentioned above and I cannot find any other documentation or info about it. 
Can someone help me understand what did change and how I can download data from coinbasepro/GDAX  ? 

Thanks

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