I've started work on porting Common Navigation Framework to RAP.
At the moment there is no compilation problems (Help system, D&D, Styled
text features are disabled) and I am starting implementing CNF dependent
navigator in my project.
I can share the code (if there won't be any unexpected problems) if you
like. I tried to follow the convention of RAP development so I took
original CNF plugin and commented all code with problems using RAP
convention.