Epson EASYMP EMP-1705 - Manual (Page 16)

16 Using Multi-Screen Display
Multi-screen display mode allows you to project different images from
multiple projectors that are connected to a single computer.
With Windows, multiple virtual displays can be set in the computer,
and each image can be projected by the projector. This function is not
available with Windows Vista due to restrictions in the Windows Vista
specifications.
For the Macintosh, an external monitor must be connected to the
computer to enable the use of the multi-screen display function.
Whereas the above explanation has referred to "virtual display", in the
case of the Macintosh, the operation relates to the screens displayed
on the physically connected monitor. Example of Adjusting the Virtual Display
By arranging the virtual display allocation, you can project only the image
that you want to show when making a presentation or project different
images from left to right.
Arrangement example 1
Image of virtual
display 1
Actual monitor
image
Image of virtual
display 2
Virtual display
Actual monitor PowerPoint file
Virtual display Excel file
Actual monitor
image
Image of virtual
display