All along, If I wish to scale, change position, change opacity... I had to hit little arrow key to pull down list of transform types and its pretty annoying. Until Today, I discover cool stuffs... I could simply hit P to pull postion underneath Layer, Hit S for scale, T for opacity and etc also Shit+(Letter) to add extra transform. I only know three letters so far S=Scale, T=Opacity, and P= Position. I wonder, is there a way I could find more lists of transform key hits??