Hi, with the story-line editor, I believe it should be very easz to just add that functionality to test-on-path frames as wel. At least when writing that story-line editor in PyQT some weeks ago, I discovered it was just doing the exact same thing for text-on-path frames as for text frames in concerns of changing the content. In light of this, I believe it should not be too hard to enable the story line editor for text-on-path frames as well.
-- Johannes Wilm
