Form: Assign Merge Numbers
Use the Assign menu > Joints > Merge Numbers command to access the Assign Merge Numbers form and assign merge numbers to selected points. When a model is imported or edited using the interactive database, edit menu commands, or on-screen editing, points that occur in the same location and have the same merge number will be merged into a single point. Assigning different merge numbers to points in the same location that have been disconnected in the object based model assures that those points will remain disconnected during future imports or editing operations.
Select the joint(s) to be assigned a merge number.
Click the Assign menu > Joints > Merge Numbers command to access the Assign Merge Numbers form.
Enter a number in the Merge Number edit box. This number will be assigned to the selected joints.