Barco R9002384 Owner's Manual page 60

LEFT-RIGHT (E-W)
Corrects for curvature of the vertical lines in the middle of
the image.
Corrects the tilting of the vertical lines in the middle of the
image.
Corrects for curvature of the vertical lines on the right side
Corrects the keystone geometry correction of the vert. lines on
the right side
Corrects for curvature of the vertical lines on the left side
Corrects the keystone geometry correction of the vert. lines on
the left side
Random Access Adjustment Mode