Sometimes you want to override a property defined in one of your ancestor property file but still want to use whatever value was defined for that ancestor. Where the ancestor is for example the `build.bnd` file while you're in the `bnd.bnd` project file.
The super macro, ${^<name>}
handles this for you. Just prefix the name of the macro you want to access with the caret (^
) and add the additional information. For example, you can add a new source folder to the workspace wide defaults:
src = ${^src},gen-src