Hello
 
I need to move some FTD devices (FTD 2100, and ASA w/FTD) from a virtual FMC to an existing physical FMC.  I have seen some comments about when you de-register a firewall from FMC, you lose its configuration.  Is this true?  If so, can I backup the configuration on the virtual FMC, then import that configuration backup into the existing physical FMC to do a restore when I de-register and move the firewall? 
If this is not the way, is there a way to move firewalls between FMCs?