New Holland Discbine Cutterbar Question

If somehow one were to damage a module in the middle of a New Holland cutterbar, can you remove that module or do the modules have to be unstacked/unbolted from the outside - in order to remove the damaged module? I'm struggling to see how it's possible to unbolt and drop out a module due to the individual shafts that drive the cutter heads - or can they be repositioned such that an individual module can be removed without dissembling the bulk of the cutterbar.

Thanks!
Bill

New Holland Discbine Cutterbar Question