No Check Marks Next to Each Slide Layer in Slide Layers Panel
I'm a newbie so if this question seems ridiculous please forgive me.
I am working through the Storyline tutorials on the Articulate website. I am using the 03D_Tabs_Interaction_360 sample. In the video, David Anderson has check marks available to the left of each layer name so he is able to see what layers he has selected. I don't have those check marks available so I can't select and dim the base layer.
I feel like I'm losing my mind. I have looked for settings for this but I haven't found anything.
Thank you in advance for your assistance.