I have 5 proximity switches in total, 2 on the x, 2 on the y and an x prime home.

Sorry I thought that all I had to do was attach the proximity switches to my cabling, but is it the case that it is just set up for E/stops? I wanted my switches to act as limit and e/stop, but will that not be possible?

Am I right in thinking that I need a length of wire to run back to the control box from each proximity switch? JAZZCNCs suggestion of a single 3 core wire would seem to make sense as it would use less wire. I can sort the wiring out, but would they negate the need for the existing wires I have which run to my switches?