Ability to move groups of pages around within the master document — necessary because sometimes the show order flips last minute. I am aware of Master Edit Mode but since pages have to be moved one at a time, it is cumbersome if you have an entire section of pages to move
(Working in live TV, I often get revision packets right before (and even during!) a show, and at that point it is too risky to run an update, because there is no longer time for me to look through the script to make sure everything transferred properly.)