Unfortunately, spherical video walls are not currently supported in Capture.
However, you can achieve a visually similar result by following these steps:
1. Add a Sphere hull from the Objects library.

2. Set Rotation to 360° and Height Rotation to 180° to create a full sphere.

3. Adjust the other dimensions to match the size of your video ball.
4. Add a media player (https://www.capture.se/Ma....html#media-players)
5. Create a new material and set its Texture Media property to the Media Player you just created.

6. Drag and drop the material onto the sphere to apply it.
7. Press Play on the Media Player.
8. Map the material to Extents so it covers the whole ball
9. Adjust the Luminance of the material to match the brightness of your real-world video ball. (For reference, 300 nits is roughly equivalent to the brightness of a typical computer monitor.)
10. Enjoy your previsualization!