Preheat oven to 350 degrees F. Line baking sheets with parchment paper or silicone baking mats.
In a medium bowl, whisk together the flour, baking soda, baking powder and salt. Set aside.
In the bowl of a stand mixer, beat softened butter, brown sugar and granulated sugar with mixer on high-speed until pale and creamy, about 3 minutes. Reduce speed to medium and add eggs, one at a time, beating well after each addition. Beat in vanilla. Reduce speed to low and add flour mixture, all at once, beating until just incorporated. Beat in oats, chocolate chunks, pecans and coconut until mixed.
Using a 1 1/2-inch scoop drop dough onto baking sheets spacing about 3 inches apart. Bake at 350 degrees F. for 12 - 15 minutes, until center is set and edges begin to brown. Remove from oven and cool on baking sheet 2 minutes. Remove to wire cooling rack to cool completely. Store in airtight container.