I'm a novice in photoshop, and while working with the program recently I hit a keyboard command which changed my workspace in an undesirable way. Formerly, when I would open documents in Photoshop they would load into individual windows that would be layered across the workspace. I could select between the windows, drag to move them, etc. Since hitting that unknown command, my workspace has been filled by a single document window. Now, when I load many images I can only see the top one--it spans the workspace and has no border to drag or manipulate the window. I've looked through view options and have found now way to restore the former settings. I'd really appreciate any help that ya'll can offer towards getting me back to the old setup.