Mouse Controls:
Left-click and drag anywhere to pan and tilt the camera.
Use the scroll wheel to zoom in and out.
Direct Value Controls:
Click on any value (Pan, Tilt, Zoom) to type in an exact value.
Click and drag left/right on a value to decrease/increase it.
When editing a value, use up/down arrow keys to increment/decrement.
Use the arrow buttons to increment/decrement values precisely.