Hidden Feature Request: jump to last mail in thread when group is selected

Hi Benny,

first I'd like to thank your for all the work you put into MailMate. It became an impressive piece of software that I enjoy to use.

Since I am still quite new to MailMate, I wonder if there is already way to achieve what I want to do:

In Correspondence-Layout, when selecting a grouped entry in the upper list, is there a way to make MailMate automatically show the particular mail, the timestamp of the group entry is pointing to?

Sorry for all the screenshots, but this seems to me the easiest way to explain things