Fred has sent me a couple of pictures. This shows his solution of getting rid of maybe 30 ft. of excess power cord. He made loops and neatly tucked them above and below the outlets under the table. It also shows what was done to get the computer and monitor cords out of the way.
The other picture is an 'open office' drawing he made of some of his solutions for different parts of the cable hanging system. Fred, would you explain their roles in the system in the comments?