This menu contains various operations pertaining to creating and sewing UV seams. Many of the commands listed here can also found on the UV Toolkit. See UV Editor overview.
Allows Maya to automatically select or cut edges on the selected object/UV shells to form appropriate seams. See Auto Seams options.
Converts the currently selected components (vertices, UVs, edges, or faces) to a line of edges around the perimeter of your selection, and then makes a cut along the perimeter, creating a new UV shell. See Create UV shells.
Separates UVs from each other along the edges connected to the selected UV points, creating borders.
Merges together separate UV shells. See Merge UVs options.
Attaches UVs along the selected borders, and moves them together in the editor view. See Move and Sew UV Edges options.