Looking for better way to export text from a drawing

It appears that there is not an easy way to get just the text out of an OmniGraffle drawing. I love the outline for creating hierarchical drawings, but then when I try to get just the text for using in other places, I cannot do so.

I just discovered a clumsy way: Export as pdf. Open the PDF. Select all and Copy. Then paste (or paste text-only) in the other editor I’m looking for. The text is pasted in relatively random order, so there is a lot of rearranging required, but at least it is there. For fast typers, it might just be faster to retype. Ugh!