unclecheese/silverstripe-gridfield-betterbuttons — pull request #7 by ARNHOE (2013-04-06 17:37:55+00:00)
Title: "enhancement": save/add existing records

Add save & add new button to existing records.

This would make sense if you just had to save for being able to add images/files. But I think in general it is a improvement, sometimes you have to edit something minor and want to be able to create a new record asap.