Automate the creation of seams and stitching for visualization. Using a curve-on-surface to define the seam line, use the Stitch and Seam tool to create seam and stitch geometry.

In the Surfaces tool palette, click the Stitch and Seam
.
Select the curves-on-surface that define the seam and do one of the following:
Set options in the Stitch and Seam Control window and click Build.
Select the stich geometry in the Outliner and change their shader so you can differentiate them from the surfaces.