Ok, here is what we have.  I have no experience other than the routing tutorial, so I have no idea how to do this.

We have a 45 pin connector.  Of the 45 wires that exit the connector, some have varying lengths and end terminations.

For example, I may have 6 wires that go to a butt connector and all are 150" long.

If I insert a connector and route the wire, it would give me a length of the wire req'd.  Now in order for me to place the other 5, I would have to insert another 5 butt connectors (I assume).  The problem I forsee, is that these connectors will be side by side in the model, and thus it will give me different wire lengths.  I want all wires to be the exact same length, with the same terminations.  Same goes with some wires that are left bare.

Any help would be appreciated.