If you have any older active listings, you can go to Revise, make some minor change (add or change your Best Offer parameters?) and then at the end of the revision, click on Save As Template.
Then relist your revised listing.
The Template will now be ready to use, and will be set up like the one you used.
You can change anything you like as you go along.
I've been making each new listing a new named Template - in my case the pattern publishers name which saves some of the information.
A poor description, but it may be clearer if you perform the experiment.