ChrisDirkis

using System.IO;
using UnityEditor;
using UnityEngine;

namespace ChrisDirkis.Utility.Editor {
    public class CreateScriptableObjectInstance : MonoBehaviour {
        private const string MenuItemAddress = "Assets/Create/Scriptable Object Instance";
        private const int Priority = int.MaxValue;

        [MenuItem(MenuItemAddress, priority = Priority)]

ChrisDirkis

using System.Linq;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.SceneManagement;

// Probably best to compile this to a DLL, or put in a folder with an
// assmebly definition set to editor only. Otherwise, put in an 
// Editor folder inside your project.