Yes, the latest version will create a help file.
// \param myexample$ - my example parameter
//! myexample$ is a string parameter
// \return data is passed through in this example
FUNCTION TEST: myexample$
RETURN myexample$
ENDFUNCTION
This example will be found as projectname.gbas.html
Note: @ shouldnt have an affect on building a help file, this is merely a feature inside the editor, and has no affect concerning your program.