Uncle Victor,
Your discussion has prompted me to add a short tutorial on back annotation using the new forward/back annotation tool in v11. Specifically, I have posted an update about how to best back annotate with a part change.
This is posted here:
http://forums.ni.com/ni/board/message?board.id=370&thread.id=7644
Please let me know if this helps resolve the situation.
Regards,
Pat Noonan