Click Preview Camera Limits or Exit Preview at any time to toggle whether the editor view is constrained by your current settings.
By default, camera panning is limited. You can disable Limit Pan to allow panning the camera, which also allows Double-click navigation within your zoom and rotation limits.
Set the maximum distance the viewer can zoom in or out. Click Set From View to use the current distance.
Limit vertical rotation (pitch)
Set the maximum amount the viewer can rotate up and down. You can move the sliders, enter an number (in degrees) or click and drag the blue nodes in the viewer.
Limit horizontal rotation (yaw)
Set the maximum amount the viewer can rotate left and right. You can move the sliders, enter an number (in degrees) or click and drag the blue nodes in the viewer.
You can use any combination of limiting zoom, pitch, and yaw. You can also move the entire limited volume with respect to the model or scene; select any node in the preview, then click and drag the axes that appear.