Below the map is a set of controls that manage where and when the view is simulated. You can click on a component of the control to change the view. Type the desired numbers or use the arrow keys to increase or decrease the values. Latitude can also be set to that of a major city in the menu. Note that longitude does not have any bearing of the sky view.
Longitude is offset by time.
This is by far the most frequently asked question. Now you can. I'm happy to respond to any email you send. However, I'm not an atronomer. I often get mail asking questions that are far out of my knowledge.