Cream butter and sugar; blend in apple butter and egg. Stir flour with soda, baking powder and salt; stir into creamed mixture. Stir in oats and coconut. Spread in greased 13 X 9 X 2-inch baking pan. Bake at 350 degrees F. about 20 minuts. If desired, sift powdered sugar over top while still warm; cool. Cut into bars. Makes 36 bars. ----------------------------------------------------------------------------