Hi Nicole, this is excellent. Never really thought to use something like this before, but will be looking to introduce into future course builds. The instruction was clear too, allowing me to give it a go.
Picking up on Sean's thoughts on using a slider to introduce more character options to choose from, I created a 1st slide with a slider & 5 extra layers. I've built all the controls to the 2nd slide, but the one thing I can't work out (I'm probably just missing the vital thing but can't see it), is how to get all the characters on the base layer/layers on the 1st slide into a Button Set, so that only 1 character can be chosen out of the 6 as per your instructions. As I can't figure this out, my version will allow me to select more than 1.
Hoping you can point me in the right direction please. Regards