HotkeyTest.cs

using UnityEditor;
using UnityEngine;

[InitializeOnLoad]
public static class HotkeyTest
{
    [MenuItem("HotkeyTest/Hotkey test alt #&S")]
    public static void TestWithAlt()
    {
        Debug.Log("Alt+shift+S pressed");
    }

    [MenuItem("HotkeyTest/Hotkey test ctrl %&S")]
    public static void TestWithCtrl()
    {
        Debug.Log("Ctrl+shift+S pressed");
    }
}