Get a layer on all (or many) slides
Is there a way to get the same layer on many slides? There doesn't seem to be a way to copy a layer to another slide.
I don't want to put it onto the master slide because I want to show/hide it with next button triggers from the slide and (as far as I can tell) there isn't a way to have the next button trigger control a layer on the master slide.
Perhaps create a feedback master layout and then just change that?
Any other ideas?