Contains two scripts:
Float Linked Layers With Retention, which creates a copy of each linked layer, floats it above the existing layer, unlinks the original layer, and links the new floating layers to each other; and
Merge Down Linked Layers, which merges each linked layer into the layer immediately below it and links those layers into which items were merged.
The first script is based off of a script by Saul Goode, dated 12/16/2006 and released under the terms of GPLv2 according to the header comments that were in the copy I received of it. My addition is the retention of the content in each of the original linked layers so that the script acts as a copying script whereas the original script acted as a cut. My reason for creating it was to allow me to easily copy a multi-layered image so that I could more easily make multiple side-by-side frames for use in creating animated sprites in computer games.
The second script is entirely the work of Saul Goode, dated 12/16/2006 and released under the terms of GPLv2 according to the header comments that were in the copy I received of it. I include it here because it allows the copies to easily be merged back down into the original once they have been moved to the desired location.
I have only tested this in Gimp v2.6.8. It is quite possible it works in earlier versions of Gimp, particularly in the 2.4 series as the original was, as far as I can tell, written for that version.