You can do it with an expression, but that takes even longer.
You can make and save an animation preset to do it if you want to apply a standard-duration opacity change over and over again.
But in truth, if it takes you any more than 10 seconds to animate opacity from 100 to 0, you either need practice... or more practice.
1 person found this helpful
you can do this with an expression. paste this on the opacity value. you can control when the fade happens by adjusting the beginning and end of your layers.
var fadeDur = 1;
var fadeIn = linear(time-thisLayer.inPoint,0,fadeDur,0,100);
var fadeOut = linear(time-(thisLayer.outPoint-fadeDur),0,fadeDur,0,100);
It works!! Thanks a lot