I don’t know anything about software that might help, but I discovered (just last night!) a slightly easier way to do that. On my Nook (which may not be the same, mine is the one with e-ink and a color touch pad at the bottom) I found that after I put the first one on the shelf, the display switched to an alphabetical by author listing. On the touchpad because I’m already in the shelving section, it’s much easier then to just up and down the list for appropriate shelving options. Does that help?