Providing image options
For this template, you want to provide editors with a choice of background images that are
appropriate for different episodes. There are multiple ways to do this, but you’ll add checkboxes
so they can toggle the visibility of each image.
First, you’ll add the images to the Timeline panel.
1. Select the Project tab to bring the panel forward. Then drag the Holding_Gun.psd,
Man_Hat.psd, and Stylized_Scene.psd files to the bottom of the Timeline panel.The adjustment layer named Background effect will affect all the layers beneath it in the
Timeline panel.
2. In the Timeline panel, select the Embrace.psd layer, and then Shift-select the
Stylized_scene.psd layer to select all four image layers. Then, choose Effect > Expression
Controls > Checkbox Control.After Effects adds the Checkbox Control effect to each of the selected layers.
3. With all four layers still selected, press T to display their Opacity properties.For each layer, you’ll create an expression that ties the Opacity property to the appropriate
checkbox.
4. Deselect all layers, and then select the Embrace.psd layer.
5. Drag the pick whip for the Opacity property in the Embrace.psd layer to the Checkbox
property in the Effect Controls panel.