I am very happy using the MC.
I always want to use the keyboard, rarely with the mouse. I need to FTP shortkey, but Ctrl-F is for Filters.
Please drop down list of option letters: C, D, E ... for drives and the letter R for FTP (Remote FTP).
I hope that few users have so many of drives and the letter R is free.
What about a shortkey for closing connection with FTP server?