[Users] When I select a folder, in the main window it shows the email which has the smallest id

[Romain]

Hi there, 
 
When I select a folder, the main window shows up the unread email which has the smallest id (thus the oldest one). 
 
Is there a way to do the opposite? To show the email with the greatest id? 
 
Before sending this email, I did look into the menus and the FAQ. So I apologize if I ever miss it. 
 
Thanks! 
 
Best, 
Romain