It's a bit unfortunate that any Cc, Bcc and Reply-To addresses entered in an identity are still not shown in the compose window (so that you can never be 100% sure if the respective headers are filled correctly), but I just encountered an even more serious issue:
Unlike to Cc and Bcc, where I can manually add any other addresses while the ones entered in the identity are being preserved, any address added to the Reply-To field is not really "additional": It does overwrite the ones defined in the identity.
Of course, I realized that only AFTER I sent the message...
I request to correct this (and furthermore, I request to display all addresses being defined in the identity).
I'm fully aware that it may get somewhat complicated if you're switching identies in the compose window back and forth (to distinguish between manually added addresses and addresses being defined in the identity...). But anyway, to display all of them would instantly disclose any problems and the user would at least have the chance to correct them manually.
Cheers,
Michael Heydekamp Co-Admin freexp.de Düsseldorf/Germany