Now my Z3 is also grounded the same way and cross cleared with another account. DdlV, I only have the mail traffic in german, I don't know if it is useful for you or good to post it here. Yes Sundance, that's the next point, destroying running strategies is not really the fine way.
But I never would have opened several accounts at FXCM if I knew that they behave this way. There are so many brokers on the market where I could use Zorro at least via the MT4 bridge and they all want customers. Therefore I asked FXCM explicitly before I did what I did. That's really big shit now.