Epson EB-Z8455WU User Manual page 158

Settings for Multiple Projectors
Zoom Display
D
Select "Scale Vertically", "Scale Horizontally", or "scale vertically
and horizontally at the same time", and then adjust the scale.
E
Set "Image Display Range".
Adjust the scale while watching the screen, because clipping
coordinates position and clipping size are different according to
screens to be matched, such as matching top and bottom screens or
left and right screens.
The image is displayed at the range that is selected
on the aspect mode. s p.22
158