Contents Part II: Mesh Tutorials | Chapter 1: Introduction to the 2Dmesh Sketchboard | Print page 1.20. Exit the 2Dmesh SketchboardClick Exit, then choose FEM > Element Tools > Duplicate Nodes from the menus.Click Show Dup Nodes.Click Merge Dup Nodes.Click Accept.Click Done. « 1.19. Mesh Middle and Right Areas Chapter 2: Introduction to Element Editing »