I am trying to convert an image outline (my dog's head) into a frame with the frame tool. I have the object selceted and set on it's own transparent layer. Every tutorial says to then go to layer>new>convert to frame, and that my outlined object will become a frame that I can fill with a smart object. However, everytime I go to click on "Convert to Frame" it is grayed out. I can't click on it. Am I missing a step? What is going on?