I do not understand software applications that do not use small arrows in their menus for rotating pages 90 degrees clockwise or counter-clockwise. It creates the exact same visual delay as bullet points:
  1. Read "clock wise"
  2. Imagine clock movement
  3. Project movement on image
  4. Think: "No I need the other one"
  5. Select menu option "counter-clockwise"
A visual shortcut is needed (i.e., a simple arrow)