Add a license header template for C++ code
Specify a file that has a license header for C++ in Preferences > C++ > File Naming > License template.

The license file may have special placeholders enclosed in %% that are replaced when generating a new file:
- %YEAR%: Year
- %MONTH%: Month
- %DAY%: Day of the month
- %DATE%: Date
- %USER%: Username
- %FILENAME%: File name
- %CLASS%: Class name (if applicable)
- %$VARIABLE%: Contents of environment variable- VARIABLE.