(this feature request is a spin-off of bug/enhancement 3083) I am requesting a new command to be added to the View menu: "View message in new window", which should produce the same effect as double clicking on the message with the mouse. This enhancement should allow the user to open a message in a new window, without using the mouse. This result will be achieved by assigning a keybinding (Enter or any other key) to the proposed command in the View menu.
Just played with this idea... if I understand your requirement correctly, try this... Change these key bindings: View->Open in new window _to_ Alt+Up File->Close _to_ Alt+Down Works for me whether message pane is open or closed... I like it... :) Claws rocks!!
A minor point if you use Focus follows mouse -- leave the mouse where the main and message windows overlap, and you can go through messages quickly with just up/down and Alt+up/down.
Wll, this is embarrassing for me. The command that I requested already existed. I had not looked attentively enough. Sorry for the confusion. I have tried to define its keyninding to Enter, but I was note able to (although I was able to bind it to ctrl+Enter and Alt+Enter). Does anyone know how to bind it to Enter?