I need Writer plugin for EndNote X6

My University requires use of APA Edition 6 for referencing supported by EndNote X6 with Word

there is a Writer plugin for EndNote X5 which works OK but does not support APA 6…

anyone know how to develop/acquire an X6 plugin?

I really want to avoid using Microsoft products and LibreOffice does the job except for this one issue

The accepted answer in this thread is reported to work for EndNote X6 under Windows 7. Also refer my answer here.