Ability to swap out war participants during Prep Day
The Leaders/Co-Leaders need a way to swap out players during Prep Day for a war. If there are troops in the War Castle, they just get dumped. But here's what happens:
We start out a war, say we have 40 members, 3 of which opt out. We have 2 we need to leave out, so we pick. Then, someone says they would rather be in, and someone in the war says they would rather be out. To give us more flexibility, let us swap, maybe up until 2 hours before Battle Day starts? That gives us time to fill WC.