3DS Max - V Ray 6 - Bring Back V Ray Quad Menu

In V-Ray 6, the Chaos group decided to remove the V-Ray quad menu options, where you had many features. To find them, now you have to use the V-Ray menu on the main menu toolbar. But, if you like to have these options back again in your quad menu, this tutorial is for you.

Note: The solution that you'll find in the video I made 6 years ago, doesn't work anymore, I'm talking about this one: https://youtu.be/_TjxBNJaW_w