Another problem that arises at Wikisource is when scan sources (typically djvu) are patched for missing pages by the insertion or deletion of additional sheets in the original file. This means that any existing transcription has to be moved to the new layout which is time consuming when performed manually.
Would it be possible for there to be a 'page block shift' feature in a future AWB version which can do the following?
For a specified Index:filename (typically something.djvu) which has a set of subpages Page:filename/x to Page:filename/y move those pages so that they are Page:filename/x to Page:filename/y+n where n is an integer offset supplied by the user of the function in AWB, x and y are the start and end points of the portion to shift.
(NB. Because this specifically relates to the Index: and Page: namespaces, it would only be applicable to Wikisource).