Yes, true.
They first have to arrive at the total amount in damages (the quantum) that they'll all settle for. That's the tricky part, but they'll have outside experts and lawyers running through the numbers. Then, usually, the split in liability is determined afterwards. Sometimes apportioning how damages are distributed between the defendants can be handled via a mini trial in and of itself. However, if the quantum (of damages) is determined and agreed to by all parties, we're laughing. The rest won't matter. Same with if the case actually goes to trial and Chanbond wins. The damages might be assessed by the judgment and the apportionment among the various defendants dealt with separately.