[HappMacDonald]

You.. but you put a ladder on the side. Rat's nest goes in the ladder, cover goes on top of the ladder. That way cables aren't blocking access to add/remove any U's.

You make sure all of the cabling has ends that can be pulled safely through the rat nests in the ladders (EG especially RJ45 cabling needs competent clip guards) and Bob's your uncle

[protocolture]

Thick DAC cables, especially long ones, can be very resistant to cable management. Then theres the deal with trying to detangle it in the first place.