I suggest to adding a ribbon cable to make it easier to connect a bunch of wires in short time. For example, you can realise it like this:
Firstly, you choose inputs one by one. They form stack of inputs. Then you choose outputs one by one and inputs will connect to outputs on a first in-first out basis.
But if we place them, i suggesting to place it like we place a middle one, and other wires will pe parallel to it.
It would be helpful if you need to create 8+ wires (for example, MUX-DMX connecting, inputs to adder, result to output etc).