Research scenes tool

Hi, is possible to have the “research scenes tool” (the magnifying glass near the first scene), in Sketchup Pro 2021?

No. That is a featured added to SketchUp 2022.

This can be made possible by creating a SketchUp extension that is compatible with SketchUp Pro 2021.

To accomplish this, the person developing the tool needs knowledge of the Ruby programming language and the SketchUp Ruby API Documentation.

However, the Magnifying glass button will not be near the first scene. Instead, a Toolbar icon will be created.

In the SketchUp Ruby API Documentation what you refer to as Scenes are instead referred to as Pages.