shared mailbox read/unread status

[Sunny]

Hi,

Is there way to sync the read/unread status of an email between a users 
inbox and someone accessing it via it being shared e.g.
user1 shared their inbox to user2 - at the moment user2 can see if an 
email has been starred/tagged/replied/forwarded by user1 but user2 
doesn't know if an email has been read/unread by user1 as by default 
when user2 subscribes to user1 inbox all emails are set to unread but 
the starred/tagged/replied/forwarded are visible.

The current permissions is set as lrswipkxtecd

Regards