Create tabs for game start menu in Unity?

Question

User interface

When developing the menu for my project, I used separate buttons, with the help of which I get to the next tab with settings, just a new tab opens on top of the old one. Here's what the main menu looks like:

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After that, by pressing the Option button, we get to a new window:

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and so on.

The question is how to make it so that a new layer does not constantly open, and the menu works according to the principle below, such as in the game Ori, where pressing the button does not hide everything completely, but only changes part of the screen. Example:

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Answer 1

The objects on the stage will somehow be arranged in a vertical hierarchy (one above or below the other).
I don't see a problem with making a Panel/Canvas part of the screen, putting different blocks inside, and using the buttons to choose which one to open.