Ability to copy test sets from one test lab folder to another without any attachments & Planned dates on the test set/ test instances . This helps in reusing test sets in multiple releases without manually removing planned dates and attachments after the test set is copied over to a new folder.
I placed today a more general idea --> Influence pasted items via workflow script
I totally aggree with OpenText that there are much more different wishes customers can have as they can build in one software, but if they would give us a possibility to have influcence on the pasted items via workflow script we could change the pasted items to follow our needs (in your case remove the attachments and planned dates).
With a cute solution OT could make us all happy :-)