I didn't really play around with the setview that much.
Basically, when I was playing with it, you'd position the slave cameras and then setview.
And there were supposed to be four or five views you could use.
But setting from one to the next, even with different views, and then trying to have it switch from one to another didn't do anything.

Maybe it was bugged, at the time.
If you can set the views to be the same and toggle into an AoE view on all screens.
So that even if the active window's camera is changed a bit...
And a previously active window had their camera view angle changed...

But now that you're pressing the AoE key the views are all aligned.
That's going to make the targeting a bit better.

What I did was set the camera to follow my characters.
And I had that set on all of the slaves.
I had two mapped keys, one for high details and one for low details.
When I did a character swap, the main window (window:current) would run the high details, to get all of the eye candy my system could handle without any performance loss.
And the other windows (window: all without current) would run the low details mapped key.

For reference on this idea:
http://www.dual-boxing.com/threads/4...Video-Settings
http://www.dual-boxing.com/threads/3...hlight=console

Both of the settings had the camera auto adjust to trail behind the character if they were to move.
Even if I was in a window previously, and messed up the angle by dragging the camera about to have a better view of something...
With the camera adjusting to 'follow' the character, it would very quickly have a behind looking ahead view.
Ditto for the main window, move forward for a few seconds and the camera was aligned again.

The mouse broadcast is covered a few times in the forum.
'Example F', in Post #5 is how I did it: http://www.dual-boxing.com/threads/2...S-Boxer-(Long)