When you create hole features on a curved surface, you can switch between two sets of options with the Use2018NamingConvention check box found on the Global Application Settings dialog box. For details, see the "Global Application Settings Dialog Box" topic.
To create a Hole feature in a curved surface:
Select the Hole (on a curved surface) icon () in the Extended Sheet Metal Features dialog box.
Select the icon for the feature that you want to create.
Complete the options in the groups: