This simple script auto offsets all layers to the selected layer along the X and Y direction. By now it does not respect Layergreoups in the correct way, but I guess this will be a great help when working on sprite sheets. You are also free to flip the mapping direction of each axis. Let me know if there are bugs or if you need some more options for this. Hope this will be helpful. :)
You find the tool in the file->create Menu
This is 2nd version of very simple script. It creates image's borders.
To install this script:
1. Download "BW-border-ENG-v2.scm" file.
2. Copy this file into "C:\Program Files\GIMP 2\share\gimp\2.0\scripts" directory.
3. Script is in the "Script-Fu->B&W Border... v2" menu.
This script places a subtle reduction in brightness at the periphery of an image using a radial gradient. The method is non-destructive and customizable in that it creates a new layer that can be deleted or modified to suit personal preference. The intent is to save a few button clicks on a frequently repeated processing task.