You can use the arrow keys on your keyboard to rotate the model horizontally or vertically. You can also set the model to rotate about the scene floor to help 'stabilize' your perception of the model in space.
Here's some information from our Help pages.
Harm Prins wrote:
Why would you delete the question?
Now, when someone is searching later for the same issue.....they will have to ask the question again.....wasting everyone's time.