Here's an idea:
1. Dock your ship with carrier bay(s) to some station.
2. Do your other ship(s) to the same station.
3. Type "/dock <Shipname> <password>" (Could allow to dock any other ship you have credentials for?)
4. Log your carrier and go to other base.
5. Log your other ship(s), undock from where the carrier is.
This could be like an add-on to existing docking plugin.
Why? To be able to carry your ships with you. Or dock some faction ship in advance.
It could be useful, if it wasn't restriction 300 cargo units to fit docking bay
carrying around your own snubs while flying carriers? usually people fly carriers or snubs.
I would not mind delivering ship slightly bigger.