• Zoom in
    Ctrl + Spacebar
  • Fit the artboard to winodws
    Ctrl + 0(zero)
  • Hand tool
    Spacebar
  • Zoom in/out
    Ctrl + Plus/Minus
  • View all artboards in window
    Ctrl + Alt + 0 (zero)
  • Show bounding box
    View -> Show Bounding Box (Command + Shift + B)
  • Rectangle Tool
    m
  • Create a copy of selected object
    Alt + Drag