There is one little bug I've come across with Sadata actually. Sometimes, the batch edit system doesn't work as anticipated and only some selected entries are updated and not others. I have an example of this at the moment. If you go to the production site (logged in) and type in 'data' in the search field you should get 19 entries. I want to put them all in the thematic cluster 'data collection monitoring and evaluation'. Currently three of them have this tag. However, when all are selected, I go to thematic cluster, select the data cluster and click update, nothing happens. Any ideas?