For the other lines, what if there was a box just like you made for Merits on the sheet and on the side but maybe title it "Powers" since each line has its own name for it, but that would enable all the disciplines, gifts, contracts etc ... to be put in and opened on the sheet. I'd make the rank box clickable to be added to the dice pool like conditions are since alot of them add to the pool. I think everything else from other lines can be tracked manually.