File name editor in book tool
It would be incredibly useful if you could use the book editor panel to be able to rename the underlying file. For instance, just before I finalise a textbook, I would like to be able to put chapters numbers in as a prefix to each file.
At the moment, I have to remove "all" the files from the book. Or rename the files after closing InDesign. Then I patch up the book by using the resultant errors to remind me of which file goes in which sequence in the book. This process is very time consuming and unnecessary, considering the amount of synching this triggers.