Cannot Remove the Catch Tray in the Fridge Door.... I have a Roper/Whirlpool side by side fridge

Question

I have a Roper/Whirlpool side by side fridge with through the door ice and water. On the outside of the macine, below the ice and water dispenser there is a small catch tray for water or ice. The tray gets dirty from time to time and I cannot figure out how to remove it to clean it properly. Can you help?