Specifies a label that selects all the parts that need to be shown dotted and dimensioned
on the isometric drawing. In many cases, using this option is faster than using Dotted Dimensioned Filter. Click the Browse 
button to display the Catalog Label dialog box, and then select the appropriate label.
Defines:
Option Switch - N/A
I-Configure - S3D.Drawing.Format.DottedSymbology.Label