Mirror the contents of an external display on the main display.
iMultiviewer is a utility that allows users to view the contents of an external display on the primary Mac, enabling users to manage content on displays that are not physically visible or even simply reducing the strain of a spread workstation.
What's new in iMultiviewer
open multiple windows to mirror more than one display at a time
showing display name in window title
added zoom, minimize etc. to the menu
new test function (select local display with option key)