"Found it! Ticking out "Hide other slide layers" in the slide layer properties did the trick. Hadn't seen that box :)"

"Hi again, finally got some time for the e-learning course and the drag-and-drop quiz. In my quiz I use draggable circles (with numbers)..."

"Great, thanks for that Adriana! Cheers!"

"Thanks for the inspiration Adriana, I'll use the ideas for a quiz in my first project ever... One small problem to be solved though. ..."