mults are easy... take 1 patchpoint hot, cold and ground and wire it to a second patchpoint hot, cold and ground. From the second patchpoint wire hot cold and ground to a third patch point. and so on and so on. most mults are 4 points across. what is your fascination with y cables. you have mentioned them on several posts. Y cables can be wired in all kinds of configurations. Also if possible can you condense your posts about patchbays into 1 thread. It will make it easier.