For Data Model objects it would be informative to have to possibility to add comments and notes.
For example a Procedure, under “Options” or a new tab, give the developer the possibility to write comments i.e. the purpose of the procedure, when it was last updated, who created/updated it. It could either be one big free-text-box or several boxes where each box represents different topics (last updated, creator etc).
A bonus would be if you can control the topic for each box.