This is super basic but might help someone. I was having problems with hidden buttons (0% opacity) continuing to be interactive when I didn't want them to be. A result of this was users skipping through scenes by remembering where the button was. Not ideal.
By foregrounding non-interactive elements the same colour as the background and creating interactions that triggered timelines that moved these, I managed to get the desired outcome. ![speaker|690x690]two shapes drag.zip (700.8 KB)
0% opacity still responds to mouse events. Along with the opacity, you'll want to make similar animations for the Display property (right below opacity in the Inspector) to go from Visible to Hidden.
(an older alternative is to simply move the button off screen via an animation with an instant timing function)