I think it would be great if you could use a Class 6 or 7 slot as a "Tow Cable" or something similar to move your ships, you'd only be able to do it one ship at a time, and it would obviously affect maneuverability, jump distance, etc ... but it would be cool to be able to 'tow' or move your ships, or even stranded ship homies out in space. Have some type of autodocking procedure involved to get the ship into the station, maybe even take it to another entry point on the station specifically for this type of situation.
And of course you could lose it if you got interdicted and somebody shot out your cable/connection but I would think that would be difficult. And they could take your towed ship if succesful, so you'd be forced to fight for it.