Preheat oven to 350 degrees F and line baking sheets with Silpat baking mats or parchment paper.
In a large bowl, either by hand or mixer, beat butter, granulated sugar, and brown sugar together until smooth and creamy, about 2 minutes.
Beat in eggs, one at a time, until well blended. Stir in vanilla extract.
In a medium bowl sift together flour, baking soda, baking powder, and kosher salt.
Gradually stir into the butter mixture until well blended.
Add oats, chips, and coconut, and stir until well blended.
Drop batter by heaping tablespoon or with a 1-ounce cookie scoop on pan about 2 inches apart.
Press tops down with the bottom of a glass to flatten cookies evenly.
Bake until golden, about 16 -18 minutes.
Cool on the pan for 2 minutes. Remove from pan and finish cooling completely on a wire rack.