Hi, this plugin is very good. congratularions.
Something that I have to change to fit my needs and cam be useful to others too.
* When the author create a new post, the category can come unselected. New authors sometime forget to select just one.
* Making it multilanguage is pretty good to. the community can do the translate, just put de default english .po file
* creating a label for the checkbos, so the user can check the checkbox by clcking on the name.
anyway, this plugins is what I needed.