How to visualize multiple open3d.visualization.Visualizer side by side in a single window?

[yusufguleray]

Checklist

• [X] I have searched for similar issues.
• [X] For Python issues, I have tested with the latest development wheel.
• [X] I have checked the release documentation and the latest documentation (for main branch).

My Question

I wanted to visualize multiple scenes of open3d.visualization.Visualizer next to each other in a single window. My question is

1. Is it possible to do so with open3d.visualization.Visualizer?
2. I have realized that another way to put multiple visualizations is to create a open3d.visualization.gui.Window and populate it with open3d.visualization.rendering.Open3DScene but the looks of it is much different and much more complex than what I need. Is there a way to recreate open3d.visualization.Visualizer using open3d.visualization.rendering.Open3DScene?