Major_Project_A/Assets/Editor/SceneCameraEditor.cs

using UnityEngine;
using UnityEditor;

public class SceneViewCameraTest
{
    [MenuItem("Tools/Move Scene To Camera #c")]
    static public void MoveSceneViewCamera()
    {

        if(Camera.main == null)
        {
            Debug.LogError("No Main camera in scene");
            return;
        }

        Vector3 position = Camera.main.transform.position;
        Quaternion rotation = Camera.main.transform.rotation;

        SceneView.lastActiveSceneView.size = 0.1f;
        SceneView.lastActiveSceneView.rotation = rotation;
        SceneView.lastActiveSceneView.pivot = position;


        SceneView.lastActiveSceneView.Repaint();
    }
}