3D View > Navigate

Image-Pro with 3D Module only

The Navigate group allows you to switch between Select and View mode.

Select: Use this button to switch the view to Select mode. In Select mode, the cursor shape changes to an arrow, and you are able to manipulate 3D objects (slices, measurements, draggers, etc.) in the Viewer  window. While in this mode, you can temporarily go into View mode (described below) by holding down the Alt key.

View: Use this button to switch the view to View mode. In View mode, the cursor shape changes to the hand icon, and you can manipulate the 3D view of the image. When View mode is selected, use the mouse to control the camera position of the viewer. In this mode , you can also rotate, move (using <Shift>+drag), or zoom objects (using the mouse wheel).