Hi r_p
60% is already the largest ratio that boxe can shrink. If you want to move the projector to a 4m distance, we suggest you try four-point keystone correction (manually zooming out can reduce the picture a bit). But we are not sure if the four-point keystone correction can be reduced the pictures to 120cm x 60cm. Please follow the steps below: Long press the “Menu button” on the remote control, select Keystone; or select Settings> Image> Four-point Keystone, and then select Quick adjustment or Fine adjustment.
