Preheat oven to 350°F. Line a 9x13" baking pan with parchment paper or foil. Lightly grease.
In a medium sized bowl, combine graham cracker crumbs and butter with a fork. Then press crumbs into pan. Next layer chocolate chips, white chips, butterscotch chips and nuts. Then pour the sweetened condensed milk evenly over top. Sprinkle with coconut.
Bake for 20-25 minutes or until the top is lightly browned. Let cool, then cut into bars or diamonds.