Scene Objects Only Attribute特性：用于对象属性，并将属性限制为场景对象，而不是项目资源。如果要确保对象是场景对象而不是项目资产，请使用此选项。

using Sirenix.OdinInspector;
using System.Collections.Generic;
using UnityEngine;


public class SceneObjectsOnlyAttributeExample : MonoBehaviour
    {
    [Title("Assets only")]
    [AssetsOnly]
    public List<GameObject> OnlyPrefabs;

    [AssetsOnly]
    public GameObject SomePrefab;

    [AssetsOnly]
    public Material MaterialAsset;

    [AssetsOnly]
    public MeshRenderer SomeMeshRendererOnPrefab;

    [Title("Scene Objects only")]
    [SceneObjectsOnly]
    public List<GameObject> OnlySceneObjects;

    [SceneObjectsOnly]
    public GameObject SomeSceneObject;

    [SceneObjectsOnly]
    public MeshRenderer SomeMeshRenderer;
}

更多教程内容详见：革命性Unity 编辑器扩展工具 --- Odin Inspector 系列教程