I have an existing hierarchical design that has a few repeated channels, and after doing a fair bit of layout work it's become clear that I'm going to have to organize things a bit differently than I had originally planned so that everything will fit within mechanical constraints. Ideally what is now a single sheet comprising the front and back ends of the repeated channel would be split into two sheets, one for the front end and one for the back end, so that I can separate them out on the PCB. The trouble is, I can't figure out how to split the sheet up without breaking component links and losing the layout and routing work I've already done. It seems like there ought to be a 'make new sheet from selected components' type of command, but if that exists I can't find it. I can almost do it if I cut and paste from the existing sheet to a new sheet, manually update component links, and then update from schematic to PCB, but that's a pain and I can't quite seem to get it to work right.
Any suggestions?