[MlMt] Attach Open Message to main view

[Dominik Obermaier]

I’m a heavy user of the Mailmate Omnifocus extension. When clicking on 
my Omnifocus task to return to Mailmate, the message is opened as new 
window.

Often these messages are part of a mail thread. I’m unable to show the 
mail thread in a new opened window for a message. I know this works if I 
open the mail in the main view with the correspondence layout. However, 
I don’t find a way to open the current message in the main view 
instead of a newly opened window.

Is there something obvious I’m missing?

Thanks,
Dominik