You can erase cosmetic threads via the Show/Erase dialog box, but once they are gone, they are gone. The threads option is greyed out in the show option. How do you get them back if you've made a mistake and erased them?
It can be done!!!! While in erase tab keep the cosmetic feature button selected then come to show tab, at the bottom there are two more tabs, OPTIONS and PREVIEW, go to preview tab unselect with preview u