May 07, 2015 · Copy Paste(comand C / comand V) by keyboard short cut not working to copy layers to a new doc. Drag and drop works. previously using PS 5 on macbook pro. been using photoshop for 10-15 years. can no longer copy paste by key commands. so now must have documents side by side to drag images, layers, etc. was just told that what i have been doing ...