Feature Request: Creep Correction

[starblightbindery]

This might be a big ask, but it would be amazing if the imposer could add creep correction as a feature. It is currently available as a feature in industry imposers.

When books are folded in signatures and edges are trimmed, the pages on the outside of the booklet will have a larger outer margin than the pages in the middle of the signature. Creep correction gradually decreases the gutter/inner margin in signatures to compensate for this so the outer margins remain consistent after the foreedge is trimmed.