Support for MultiDataObject with multiple grammars

I have a project that I am building that has a MultiDataObject that uses 2 different source files that are related to each other but have different grammars.  One contains metadata about the first object.  Netbeans provides nice tools to integrate the parser and lexer into the editor for the primary file, but it appears to me that support for the secondary file with its own parser and lexer is not there.  Am I mistaken?  If so, can you direct me to documentation and examples that support this on the secondary file?

Thank you,

Todd Stevenson