ProjectionSolver also lets you create Cards in your 3D scene to correspond with each of the camera positions. This helps you visualize the scene at a glance, without having to scrub back and forth on the timeline.
After you’ve created your Camera, click Create Cards. ProjectionSolver creates a set of Card nodes connected to your Scene node, and you can use them in the 3D view mode to view your camera positions. In the z field, you can specify the z distance, or the depth value for the Card nodes.