See attachment. When running for example Z2 with EUR/USD selected, it starts loading other currencies after it has processed EUR/USD as well.
Could someone explain that? Part of the training process?

Because the Z2 system trades multiple assets.

Did you read the description of the Z2 system? It is here, and **very** required reading:
https://zorro-project.com/manual/en/zsystems.htm

Always do your due diligence.

Thanks for the info. I have read that but it does not explicitly state that Z2 trades multiple assets at the same time.
And the UX pattern of a dropdown to select a currency strengthens the idea that the user is selecting one pair of currencies.

But OK, understood now, thanks again for taking the time.

My next question would be, how often can I expect it to trade? I have had it running for some hours with a virtual trade to Oanda, but nothing happens after the history is loaded.. I understand the interval is 240, so not too much action should happen at once. But after two days, I should see something happening right?