Six faces and an arrow

When you hover your mouse pointer over one of the buttons, a tool tip appears that explains the purpose of the button.

The button on the left with a picture of a mouse pointer on its face can be used for four different purposes.

The specific purpose depends on which key you hold down while you move the mouse:

• Move objects freely with the mouse (this lets you drag the object).
• shift - move up/down
• control - turn left/right
• shift/control - tumble

These operations duplicate operations assigned to three of the buttons with pictures on their faces.