Hi,
1) It is possible at infoprovider level, that means in infoprovider display --> Navigational Attributes --> uncheck the box which navigational attribute off. Then you wont get that attribute in to Query Panel.
2) In Query alone it is not Possible.
3) If you don't want this object means you don't drag it in to row or free chars panel then even user wont display that object.
If my perception is wrong correct me.
Still any ideas need let me know.
Thanks & Regards,
Srinu.Rapolu