Jason,
I will double check if necessary, but I think this has a bug. When I had a fresh document open, with regular binding controls in it, I did not get any options showing in the panel. In fact, it was completely blank, and then went away after I clicked in another binding.
Also - does this still only work with rows of a table? Is it possible to repeat across the columns of the word document? Say I had a list of things I wanted to somehow repeat ,across the page instead of down, with a comma after each one or a bar between them or something.