Hide pinned Messages filter
In the messages Filters allow an option to hide pinned messages, unless you receive a new unread message. So your pins would be otherwise in their usual place in chronological order, and when you deactivated this setting, your pins would be displayed at the top of the list.
Activate the setting and the pins disperse, leaving you an easy to view space at the top of the screen to view the inbox.
Also. Give us a “mark as unread” capability. In case we open a message but don’t have time to respond.