Can the arm also be turned "backwards"? I have an 80cm deep table and would like to be able to handle the interpupillary distance flexibly. According to the assembly instructions, the arm must be fixed to the stand with a screw. However, this only allows a maximum rotation of 180 degrees. This means that the monitor is as far as possible parallel to the edge of the table, but not beyond it. Funnily enough, the LX can rotate 360 degrees without any problems.