In the real world, we work on multi-page documents, sometimes 100's of pages. We use custom sequences for labeling things and sometime, believe it or not, changes are needed. Right now, you can't move a sequence from page to page without jumping through hoops (flattening/unflattening which then lose the relationship to the sequence).
We need the ability to fill in a missing sequence without affecting any of the other numbers already used in the sequence.
We need to be able to set min/max on them.
If one is deleted out of the middle, we need the ability to select that missing number in the sequence the next time we place something. For example, if we place a sequence "A1", "A2", "A3", "A4" and then due to a change have to delete "A2"….instead of just "Resume Sequence"…give us the option to "Use missing Sequences" or something so that the tool would automatically set the next placement to "A2", then move to "A5", "A6" and so on.