Add LOD suffixes to selected files

gistfile1.txt

using UnityEngine;
using UnityEditor;
using System.Collections;

public class AddSuffixLOD : MonoBehaviour {

    [MenuItem("Tools/AddSuffix/_LOD0")]
    static void AddSuffix0()
    { // Suffixes _LOD0 to the name
        AddSuffixViaString("_LOD0");
    }

    [MenuItem("Tools/AddSuffix/_LOD1")]
    static void AddSuffix1()
    { // Suffixes _LOD1 to the name
        AddSuffixViaString("_LOD1");
    }

    [MenuItem("Tools/AddSuffix/_LOD2")]
    static void AddSuffix2()
    { // Suffixes _LOD2 to the name
        AddSuffixViaString("_LOD2");
    }

    [MenuItem("Tools/AddSuffix/_LOD3")]
    static void AddSuffix3()
    { // Suffixes _LOD3 to the name
        AddSuffixViaString("_LOD3");
    }

    [MenuItem("Tools/AddSuffix/_LOD4")]
    static void AddSuffix4()
    { // Suffixes _LOD4 to the name
        AddSuffixViaString("_LOD4");
    }

    [MenuItem("Tools/AddSuffix/_LOD5")]
    static void AddSuffix5()
    { // Suffixes _LOD5 to the name
        AddSuffixViaString("_LOD5");
    }

    [MenuItem("Tools/AddSuffix/Strip_Suffix")]
    static void StripSuffix()
    { // STRIP suffix from the name
        RemoveSuffix();
    }

    private static void RemoveSuffix()
    {
        foreach (GameObject go in Selection.gameObjects)
        {
            go.name = go.name.Remove(go.name.IndexOf("_LOD"));
        }
    }

    private static void AddSuffixViaString(string suffix)
    {
        foreach (GameObject go in Selection.gameObjects)
        {
            go.name = go.name + suffix;
        }
    }
}