Currently you have to run a full set of accounts with your chosen margin. When preparing copies for signing we print the flysheet and accountants/auditors report on our headed paper which require a different margin.
This can often move an audit report from 3 pages to 4 pages which puts the page numbers out of order.
It would be helpful to be able to select the flysheet and accountants/auditors report to have custom margins that override the chosen margin for the full report.
Thanks for the comment, we will consider this in the future.