It unticked the Show Specific Posts button in the Slider pane when I activated 1.5.5. I activated my child theme and ticked it back in. So I guess the protocol is activate the latest version, then reactivate the child theme, right?
Meanwhile, I now have the Advanced tab and managed to get the ticker into a space below the menu, so I’m guessing with some trial and error I can find the right action hook to get it into the top bar.
Thanks once again!
Sara