I'm using Premiere Pro 1.5 and I need some help. I'm trying to do a camera blue effect that gradually increases. But the problem is that I can't add keyframes to the video, I've turned 'show keyframes' on but when I hold down Ctrl to add a keyframe nothing happens, the little + sign doesn't appear and I can't add a keyframe. Am I doin it right? I can add keyframes for opacity but nothing else.