Either in Document Property or Status bar, there is no information about how many of the elements are overprinted OR hidden. I strongly belive that its a very big issue. if an element is overprint command is applied and should not turn on simulate overprints. if he copies and used that overprinted object all over the documents.... here goes all the mistakes. To probe there is no info either in document properties or status bar.
My sincere wishe.... is that every element info should be given in the status bar.
a detailed info about the selected element.... like its all attributes of the selected.