Ability to change System Date for GnuCash

[John Nickell]

I was wondering if anyone has figured out a way inside GnuCash to change
the system date.  Without messing around with the date of the Operating
System.

What I'd like to be able to accomplish in the end, is to enter a scheduled
transaction, before it's actually 'due'.  i.e. I know I'm not going to be
around my computer for the next few days, and I'd like to go ahead and take
care of the bills that will be due during that time now.  I'd like to be
able to make GnuCash think it's past the due date so I can go ahead and
utilize the scheduled transaction template to create the transaction.

Our financial program at work allows you to do this by clicking on the
'calendar' inside the program and setting the date for that user, so that
things like month end could be processed either pre or post time.

Thoughts?

If you have another way of accomplishing this, please share.