Trashcan to Archive

In my industry, I should never delete emails, only archive.  I would like to change the trashcan icon to the archive icon in my inbox.  When I hover over a message, my options are FLAG or DELETE.  How can I make this FLAG or ARCHIVE?  I would also like to add the archive option to the reading pane.  I currently have EMOJI, REPLY, REPLY ALL, FORWARD, TEAMS and ...