Hi @IvoGrijt I have a question on vertical height adjustment hoping you can answer, my placement of the projector on an existing shelf the projected picture is slightly too high for my sitting position resulting in having to tilt the head up to watch, 4 corner correction doesn’t work as it can only bring the top 2 corners down but the bottom 2 corners won’t move downwards, how am I able to move all 4 corners either up or down at the same time if possible without adjusting my shelf height? I basically want to move the whole picture either higher or lower, thanks.