War training enhancements

Hello guys!!!!
There are 2 features I came up with, hoping they would imorove the troop training method.
1. Army swap- so basically you can swap your 1st army with your 2nd.
2. Troops swap- A while ago, I had posted about a new feature that could be introduced to tje game, called the door so that armies in the army camps wouldn't get mixed up with troops from the 2nd army. Was thinking if there could be a feature of swapping troops from armies for example if i have a GOWIPE and Dragloon army ready, i could actually swap one of my pekkas with one of the drags. This would solve the problem of the mixing of troops after donating or returning after attacking with troops left. Hopefully, supercell looks into this matter and comes up with a positive answer.