3S1P charging...

I have a hobby pack consisting of 3S1P 22650 cells.

I had to revive the pack by charging each cell on my XTAR WP2.

In a momentary lapse of reason, I ended up back-powering the charger with the full 12V and it smoked instantly.

Question is, can I charge each cell using the Opus BT-C3100?
If these are truly unique charge bays, I’m hoping I can wire the 3 cells while they are still connected.

you can’t do them all at the same time. I have charged 2 cells at the same time with 2 different OPUS chargers