We thought about this when we first starting building eaDocX, but in the end decided never to write any data back to EA: that way, users who just want to use eaDocX to create documents (and not edit models) can use EALite.
We are thinking about maybe saving some information ABOUT the document back in the model: version, dates etc, with a link to where you have stored the generated document. This would give a measure of visibility of the document, and help to track versions. This would be in a future version of eaDocX, whch won’t then be compatible with EALite.

Thanks