I am a leader of a war clan. In my opinion the clan war opt out button was the best update ever made. I would absolutely love it if supercell would consider adding an optional-opt-out button.
Every war starter knows that there are almost never exactly 45/40/35/etc people opted in and when there are 39 people opted in then I have to choose 4 additional people to opt out and I don't know how they are going to feel about it or if they are going to get upset about being left out. It would be a big help if members were able to indicate in their profile that they were flexible for that war by changing their status. For example, maybe they are traveling and could get their attacks in if they needed to but would prefer to opt out if there were extras. Or maybe a th8 is going for the level 3 pekka upgrade which means they have to max all elixir storages and this is hard to balance with the cost of troops for war attacks but they still want to be a team-player and opt in to the war if we come up short.
Right now we have a green button for opting in and a red button for opting out. My suggestion is that a yellow button be added to indicate that the player is flexible about being opted in or out of that war.



