Custom XML preserved thru cut/paste operations

Not exactly a SDK question, but here goes:

We have a document with inline custom xml markup to tag specific portions of the doc. In Word 2007, if we cut/paste those sections into a new document, it doesn't seem to preserve the custom markup. Cutting/pasting within the same document works. Browsing thru the SDK, it looks like we would be able to do this programmatically, but the question here is if we have docs that have custom xml embedded, and users cut/paste objects between docs from within Word, how can we preserve our custom tags to continue to be associated with these objects?

[606 byte] By [Ed9999] at [2008-2-4]
# 1

I am not sure that I fully understand this question. Are you trying to port objects as parts using the API or are you use cut/paste function through UI? I am not sure the latter will understand and save the custom xml. Is this your question?

BTW, what are the custom tags in your scenarios? What semantics are you trying to preserve for the objects?

Thanks.

LanqingBrownell at 2007-9-28 > top of Msdn Tech,Office Live Development,Microsoft SDK for Open XML Formats...
# 2
Yes, that's my question - will cutting/pasting thru the UI preserve the custom xml? It seems to preserve it if I cut/paste within the same doucment, but not if I paste into a new document. Custom tags could be anything - for example I may have a document with a number of chart images - depending on the object, some valid tags may be "PriceChart" or "PriceVolumeChart", and I want to preserve those tags if a user copies it to another document.
Ed9999 at 2007-9-28 > top of Msdn Tech,Office Live Development,Microsoft SDK for Open XML Formats...