I use them on nearly every part/assembly. It makes it easier to get up to speed when opening up the file after months or years since programming it. My most common labels are "OP1", "OP2", ... and "FIXTURE 1", ... It improves my workflow while programming too. Most of the time, I preset the operation viewsheets with the origin and active levels and then work my way through the process from start to finish. When I get done, I mark up the viewsheets with set up information, print out the set up sheets and the views are saved for the next time I open the file. *edit*: I just realized that this is my first post.... I have been lurking these great forums for a very long time. I will take this opportunity to thank everyone for such a great resource.