ABSTRACT
To add an expression to any property, reveal it in the Timeline, then Option click (Alt click) the property's stopwatch. Add expressions to effect properties by Option clicking (Alt clicking) their stopwatches in the Effect Control palette. To delete expressions, Option click (Alt click) stopwatches a second time. To temporarily disable an expression, click the equal-sign button that appears to the left of the stopwatch for any property that's controlled by an expression.
