[JKT]

The ability is already there in OmniGraffle (LinkBack*), just not in Word. There is also fat chance that MS will add support for LinkBack into the Office programmes no matter how useful it would be.

* You can demonstrate this for yourself by copying and pasting a group of objects as a PDF within OmniGraffle and then double clicking the PDF - it will open a separate window for the PDF of the group that reverts to being an editable set of the original OmniGraffle objects.

As a side note, it is really disappointing to see so little support from the majority of other Mac developers for LinkBack in their software as well. I really wish Apple would adopt it and get it better publiscised.