Epson EasyMP Network Projection Operation Manual page 27

Using Multi-Screen Display
B
Click "Connect".
The image allocated to each projector is projected.
In a Windows environment, you cannot view the image being sent to
a virtual display on the computer. To adjust the image on the virtual
display, you must do so while viewing the projected image.
To perform mouse-based operations on the virtual display, move the
mouse pointer in the direction of the virtual display, such that the
pointer appears on the virtual display.
C
To terminate multi-screen display, click "Disconnect" on the
toolbar.
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