All default standards for hole callouts (ANSI, ISO, Din, etc.) are defined in a text file under installation directory \solidworks\lang\<language>\calloutformat.txt.
If you require derived hole standards, you must define these in this file as well.
To define a derived hole callout standard:
- Locate and open calloutformat.txt.
- Copy and paste content describing the ANSI standard.
- Using only upper case letters, substitute the new derived standard name for ANSI in this copied section of text in the file.