Unity-UI-Extensions

Variant 1

- Select "Add package from git URL"
- Paste https://github.com/IvanMurzak/Unity-UI-Extensions.git#upm

!alt text

Variant 2

Modify manifest.json file.

{

    "dependencies": {

        "extensions.unity.ui": "https://github.com/IvanMurzak/Unity-UI-Extensions.git#upm"

    }

}