The ability to see what has been donated to clan members

Im not sure if this has been mentioned before but recently someone in my clan requested a dragon, 2 wizards and 2 archers.
So this gave me an idea- when clicking the donate button, underneath the screen with all the troops available for you to donate it should have another section with :

Troops already donated:

I think this would be a great addition to the game and one that is not too difficult to implement.
Please give me your feedback on the idea guys

Thanks