Clear ScriptableObjects

using UnityEditor;
using UnityEngine;

[CustomEditor(typeof(GameSaveManager))]
public class GameSaveManagerEditor : Editor
{
    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();

        serializedObject.Update();
        serializedObject.ApplyModifiedProperties();

        GameSaveManager gsm = (GameSaveManager)target;

        if (gsm == null)
            return;

        GUILayout.Space(10);
        GUILayout.BeginVertical("HelpBox");
        GUILayout.Label("Debug Options");
        GUILayout.BeginHorizontal();
        GUILayout.BeginVertical("GroupBox");

        if (GUILayout.Button("Reset Scriptable Objects"))
        {
            if(EditorUtility.DisplayDialog("Reset Default Values", "Are you sure you want to reset all the scriptable objects to their " +
                "default values?", "Reset", "Do Not Reset"))
            {
                gsm.ResetScriptables();
            }
        }

        GUILayout.Space(10);

        if (GUILayout.Button("Reset Save File"))
        {
            if (EditorUtility.DisplayDialog("Reset Game Saves", "Are you sure you want to reset the game save file?",
                "Reset", "Do Not Reset"))
            {
                gsm.DeleteSaveData();
            }
        }

        GUILayout.EndVertical();
        GUILayout.EndHorizontal();
        GUILayout.EndVertical();
    }
}