Link Opacity To In Point expression

This expression links a layer’s opacity to the in-point of another layer. It’s particularly useful for synchronizing the visibility of layers based on the in-point of a reference layer, often applied to the Opacity property.

leader = thisComp.layer(“targeLayer”)
time < leader.inPoint || time > leader.outPoint ? 0 : 100*replace “targetLayer” to your name of layer