Change Applicaple Budget Month for a Transaction

[David Somers-Harris]

Sometimes I pay the electricity bill for November in December, a little
later than usual. This shows up in GNUCash as an abnormally large
expenditure on electricity in December, which ends up being over budget.

In this situation I would like to tell GNUCash to consider that transaction
as a part of November's budget. However, just changing the transaction date
won't suffice, since it is important for that data to be accurate as well.

Is there a way of doing this in GNUCash?