Layer visibility not locking
I'm having trouble with a course that I am building in Storyline 360. I have a base layer with 5 buttons that trigger each their own layer. I want the layers to pop up right next to the button that triggers it, leaving most of the base layer still visible.
However, currently whenever I add a new layer, a whole blank slide-sized layer is added, covering up the entirety of the base layer. I also cannot see the base layer anymore even when locking its visibility.
How do I make smaller layers, that exist "on" part of the base layer, instead of covering the whole thing?