Thanks a lot, JCL, I now got myself a first brokers Demoaccount and let Zorro run through the MT4 bridge.
As anticipated it sits there this week and I did not dare to touch it, because it shows in the results that it is alive.
But now is the weekend break and I thought I could use this to play around on Zorro a bit in order to learn more.

However, in order to run any other strategy or backtest I would have to switch of the current Z12 strategy I am running.

So my question is: Can I interrrupt my current trade in my demo-account and later simply resume it from where I left of?
Or will Zorro start the previous strategy from scratch again and all it "learned" from the slowly estabilished equity curve is lost ?

This question is crucial actually, because I should know what happens if my laptop breaks down (after weeks of trading) or I do loose electricity.