I gave the room a nice paint job, so the whole room and the corridor on the left are covered:
So I managed to reach the third room with the cubicle that I need in this room. But I'm having difficulties getting it into this room.
I tried making a portal behind the cubicle and 'throw' it through but that didn't work. But I can't figure out how to get the paint in that room... so I'm stuck. Any help?