I'd like to mirror/clone separate parts of my iMac screen to smaller external displays.

For me the best solution would be to draw a frame on top of the iMac display and let that special frame show up on a smaller external display.

Is this possible? How can I do this?

  • would screen sharing work for that?
    – Ruskes
    Jun 5 '15 at 5:06
  • I've never seen anything that can do this. You can ADD a screen to the Mac but I am unsure if this is even possible. However wiser people than me may know of something... Jun 5 '15 at 13:54

There are tools for doing this which are visual aids like zooming and following the mouse around, maybe they might work?

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