right click for properties of library, collection or group

It would be great to be able to right click on a library, collection or group and see a properties option.Clicking on this option would create a little pop up window with the following information:

Basic:
Number of entries
Storage space used (Mb)

Fancy:
No of Entries with attachments
No of Entries without attachments
No of Files without parent entry
No of Doublets.

This would be similar to the same option in any file-browser like windows explorer, Konquerer or Dolphin, and therefore quit intuitive to use.
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