Troop Training preset

I don't know if anyone else thought of this, but it would be nice if we could train the same troops we previously used in a battle.

Like if i had say 13 giants, 6 wizards, 6 wall breakers, a healer, and 25 archers, then I could use them in a battle, then if I wanted to train the same amount and type of troops, then I could push a button and If I had the necessary funds, then I could train the same army. I found it a hassle to remember how many of each troop I had and trying to keep track of how much time it would take to train the, please leave feedback