I sometime "auto bracket" when using my digital camera. This produces 3 images of each scene & the camera assigns 3 different numbers. I'd like to select a group of files and have them renumbered something like this:
img-001.jpg - - - 001-1-img-001.jpg
img-002.jpg - - - 001-2-img-002.jpg
img-003.jpg - - - 001-3-img-003.jpg
img-004.jpg - - - 002-1-img-004.jpg
img-005.jpg - - - 002-2-img-005.jpg
img-006.jpg - - - 002-3-img-006.jpg
img-007.jpg - - - 003-1-img-007.jpg
img-008.jpg - - - 003-2-img-008.jpg
img-009.jpg - - - 003-3-img-009.jpg
In other words, I'd like to add a prefix/suffix to a group of "x" files & I'd like to sequence from 1 thru "x" within that group & repeat this for all selected files.
That's not my final naming scheme (I normally perform renaming in several steps for simplicity), but if I can get that far the rest is simple.