sehmaschine/django-grappelli — pull request #423 by fabiant7t (2013-12-10 16:54:28+00:00)
Title: Sortable inlines with support for manually set, negative order values

We have long lists of inline sortables. Every time a new inline gets added, it gets stored at the end of the list, but should be at the very top in our use case. Since we have the order field in place, I think it's easier to enter a negative position value and move those inlines at the very top upon submission than having to drag them through the list using the mouse.