it's a bit rough and ready with no error checking evaluate the attached macro script and add to your ui then in editable poly select an edge and press the button and you can slide along the edge all you want.... it could also be adapted to work on editable mesh
A turtle monster! Some fun marmoset post effects: The "Embed a 3D Model" button doesn't seem to be working, so here's a Sketchfab link: Turtle_Posed (click to view in 3D)
I've heard that you able to fix seams in zbrush and not by just hitting fix seams button. If anyone has any tips on this please drop a line. thanks much.