Well, I've opened a demo. Selected 4 systems. 48 h later I read this:
"System Ping_EA_Hung was removed as it didn't comply with the AutoTrade program requirements. There are still trades of this system open in your account - if you wish to close the trades, you must do this manually. Refresh this page to remove this message after closing the trades in question."
I think that MyFxBook should have emailed me as fast as he was removed as a system.
Besides I'm unable to find a way to set SL or TP with them.