Click on a word in your text.
Open up the Fields editor, References tab.
Click on Set Reference.  Give it a Name. Click on Insert.
The text word now has a reference.
If you now double-click on the word, the Name you chose (above) shows up grayed
out in the Value field.
There doesn't seem to be any way to delete or edit the field, short of deleting
all the text that has the reference.

This seems different from the Delete Caption bugs, because that bug involved a
frame that was inserted around a picture/caption.  I don't think this one has a
frame.