6. Expand the Opacity property to see the expression.After Effects created the default expression effect (“Checkbox Control”)(“Checkbox”), which
identifies the related effect. You want to set the opacity to 100% when the checkbox is selected,
so you’ll add that instruction to the expression.
7. Type *100 at the end of the existing expression.
8. Repeat steps 4–7 for each of the other image layers.Now you’re ready to add the controls to the Essential Graphics panel.
9. Select all four image layers in the Timeline panel, and press E to display the effects for each
layer.
10. In the Embrace.psd layer, expand the Checkbox Control properties to see the Checkbox
property. Then drag the Checkbox property into the Essential Graphics panel.
11. Rename the Checkbox property Embrace.
12. Repeat steps 10–11 for each of the other layers, renaming the Checkbox properties Holding
gun, Man in hat, and Stylized, respectively.
13. Choose Add Group from the menu at the bottom of the Essential Graphics panel, and name
the group Background images.
14. Drag the image checkboxes into the Background images group.
15. Choose Add Comment from the menu at the bottom of the Essential Graphics panel. Then,