Accessing graphic on base layer in other layers
I have a multi-box graphic on the base layer and want the learner to click on each box to access an associated layer to learn more about the item. I have dimmed the base layer objects so they are grey but still visible. I have copied just the single box to each applicable layer so that it is coloured on the relevant layer, thus highlighting the subject. How can I get it so they can click on a box, it shows the relevant layer, and then they click on another box which takes them to another layer. I.e. how do I make the base layer objects clickable from any other layer? Or is that not possible? I don't want to have to create hotspots on each layer as that would be very laborious. There are 25 boxes to click.