Cutting 12mm Marine Play on Beambox Pro

Is there any way I can multi-pass to cut 12mm Marine ply - it would save making 2 x 6mm and gluing together.

12mm seems like a big ask. Even with multiple passes, adjusting the focus down through the wood each time I’d think that the walls of the first pass would obscure a large portion of the cone of the unfocused beam.
You could try replacing the lens with one that has a longer focal distance, meaning narrower cone, and try multiple passes. But I still think that’s not the ideal way to do it.