I think we should add a command line switch to Kleopatra to open the group configuration dialog. The usecase for this seems to me that if you have a keyresolver open and you e.g. want to write a mail to "code@g10code.com" but of course do not have the keys for this. That you can open the group configuration and quickly set up a group. For "code@g10code.com" and add the keys you want to use for that.

Of course once this is done the keyresolver must somehow notice this and reload the groups. Although the keycache should in theory take care of that. Note that this is intended to replace the feature of KMail / Outlook to "save" which key should be used for some contact since some people may only interact with GnuPG through the keyresolver or file encryption dialog and never open Kleopatra.