Combine cherries and Florida Orange Juice, reserved cherry juice, sugar, lemon juice and cornstarch in medium saucepan. Bring to a simmer, stirring constantly. Cook for 1 minute and remove from heat. Add butter and stir until melted. Cool and add Florida Orange and Florida Grapefruit segments. Pour filling into baking dish or pie pan.
Combine flour, sugar, baking powder and cinnamon in food processor. Add butter and pulse a few times until butter is cut into small, pea-sized pieces. Remove flour mixture from food processor and place mixture in mixing bowl. Add egg and milk and stir just until just combined, do not over mix. Drop topping mixture by tablespoons over filling until it is almost covered. Bake in a 350°F oven until topping is browned and filling is bubbling and hot. Remove from oven and cool slightly before serving.