Dimming a disabled button?
How can I dim a button until the narration finishes?
I have a slide with layers that are activated by clicking on buttons, and I want them to listen to the whole narration before clicking the buttons. They also must select all the buttons before continuing to the next slide. I have already successfully changed the states to disabled until timeline finishes, and also have deactivated the built-in Next button until they view all the layers and added a layer to the Next button which says "you must click all the buttons before continuing to the next slide."
All well and good, BUT I have no way to indicate that no matter how many times they click the layer buttons, they won't work until the narration ends. Simply graying them out seems to be the best option, but I can't figure out how to do that! Other suggestions are also welcome if there is no way to dim a button.