How to create 2 panels on same scene and don`t overlay

Hello Guys.

I have the following Scene:

So, in this scene, i have two "panels'. The one on the left, is made of game objects, and the other one on the right is a UI canvas with some UI elements in it.

So, my problem is that if my gameObjects panel is horizontally big, it will overflow and cover the UI panel. There is a way to keep those two panels separated, no matter what, and make the gameObjects panel resizable, like the UI elements are?

Maybe using 2 cameras to show each panel. I don't know.

Thanks for all.