In checking out the userdic.tlx document, when the words are added there there is a tab then i added after the word.
Currently I am working on a computer with open office, but I seem to remember that word could replace a paragraph sign with tab i paragraph, which would put this after every word. Then if the document could be saved again (as a tlx document) it might work.
If that doesn't work (and I probably won't have a chance to try it out until the weekend) perhaps we could elevate this to the AC central and see if they could get it added to the main dictionary in a future release. They would probably need sign offs from both the source of words and the sublicensed dictionary, but this should not be that difficult.
I do like the idea of having one central repository of words, not local computer separate.