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Control Property with Checkbox - After Effects Expression

Apply this expression to the property you want to control (like opacity) and make sure it is referencing the correct control layer.

Control Property with Checkbox

value * effect("Control Name")("Checkbox");
// replace Checkbox Control with your checkbox control

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thisComp.layer("Controls").effect("Control Name")("Checkbox") * value;

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Apply to opacity property of a layer. Change name of layer to start with [1,2,3] to match the Dropdown control.

Control Property with Checkbox

Apply this expression to the property you want to control (like opacity) and make sure it is referencing the correct control layer.

Scale Layer to a Certain Width

Scale a layer to fit a pixel width. Apply to scale property

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