Crust: Preheat the oven to 375°F. Lightly spritz the bottom of a 10-inch springform pan with cooking spray. Set aside.
Spread 1/4 cup macadamia nuts on a baking sheet and toast for 4-5 minutes. Set aside for garnishing.
In a medium bowl mix together crumbs, 1/2 cup nuts, butter, coconut and 1/4 cup sugar. Press firmly onto the bottom and about 3/4 inches up the sides of the pan.
Bake crust for 16-18 minutes until golden brown and set. Cool completely.
Make the Filling: In the large bowl of a stand mixer whip together both packages of Dream Whip mix with 1 cup milk until stiff peaks form. Around 4-6 minutes.
To the whipped cream add both boxes of coconut pudding mix remaining 1 1/2 cups whole milk and vanilla extract. Continue to whip for an additional 3 minutes or until the mixture is fully thickened and slightly golden in color.
Use a large spoon or spatula to fold in the crushed pineapple and grated orange zest.
Spread the creamy tropical filling over the cooled crust, smoothing the top.
Cover with plastic wrap and chill in the fridge for at least 4-6 hours before slicing.
Before serving, frost the top with whipped topping. Sprinkle the top with orange zest and reserved toasted macadamia nuts, slice and serve.