if you are lucky enough to have either guideways or emt the wire pushes through. tape twine and cable to wire. pull it back.
leave twine in for easy adding cables later.
( labeled clearly naturally )
if no emt / guideways, use the wire to feed across drop ceiling, tape cables and twine to it pull back.
it's the method Ive used in older building to connect mainframe terminals across 10 floors of offices. to wire duty free stores in international departures wing of YVR. ( yes Oz, I wired the longhouse Alders store for electrical, phone and data ) a 2 mile run of line.
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