On the Messages screen there are 4 tabs on the tab bar: Inbox, Sent, Archived, Settings
You can search for the name of the sender or the subject of the message in the Search field. At least 3 characters should be entered for the search. All results are displayed that contain the entered character sequence.
You can choose from 3 options after clicking the … button in the top right corner of the message displayed on the right side.
You can get more information about Print message stream and Delete message stream by clicking on the links.
New message can be sent on the Inbox tab.