Just saw your post. I "sort of" achieved the wrap effect by putting a second one-cell table inside the first table (see top of img).
To make it wrap, select the inner table, then right-click, go to properties, and change the text wrapping (bottom of img).
Actually... As I'm posting this, I just tried it with a Textbox inside (rather than a second table). It looks nicer. (note layout settings)