On Mir, the docking module was at the front end of the station. It technically had 6 ports (one was used to connect to Mir itself, so 5 exposed).
In general the docking node had one active port that a Soyuz, Progress, or incoming module could dock to with Kurs or the like.
Once docked they used the Lyappa Arm to undock, rotate, and move the docked module to a side port or around to another side port.
What I am wondering is, did they ever use Lyappa to move a Soyuz or Progress to a side port?
One clue would be, if a Soyuz could undock on its own from a side port, vs the active docking port. (Soyuz was there as a lifeboat, and is why Dragon has to move to use the PMA/NDS system to dock vs the CBM and berthing since it cannot unberth without the CanadaArm2s help, but could undock from the PMA on its own).
If it could not undock on its own from a side port, then it could never have been there for very long if at all.