Disabling Buttons on Base Layer
Hi - I have 3 buttons (1, 2, 3) on my base layer that show a slide layer for each. Each slide layer has audio. I want to disable the Slide Layer 2 button until the audio has completed on Slide Layer 1; and disable the Slide Layer 3 button until the audio has completed on slide layer 2. I'm able to force the learner to select the buttons in order (1,2,3), but can't prevent them from selecting the Slide Layer Button 2 once Button 1 is visited. Is there a way to keep Button 2 disabled until the media on Slide Layer 1 has completed? I would do the same thing for Slide Layer Button 3. Thanks.