i use keyboard.. once it's in the clipboard... control v will paste ur image on the active psd as a layer.. i use control c for copying and control v for pasting... a lot... but, this layer thing is giving me some headache as well as some of them look very complicate.. easily over 30 layers....
oh.. also, i am playing with spider's mod as well... it's very nice indeed... ^^ Check out his post, he posted some nice tutorial on how to change colors and stuffs... It helped me understanding the layers as well..