Just pulling this out because I really don't use the command line much, but try
toggle_ftp
or
toggle_ftpopen
At least on the Windows (13.0.2) version, it pops out the ftp windows from a docked position (even if I start out with them undocked. First time, it hides it, the next it flies out from the side.
If it doesn't work, likely the ftp window is "broken". If it does, well, I don't know.