I think that a feature should be added to opt out fellow clan mates who have become inactive recently to keep track of who will attack in war. This would be a feature that mimics the Hay Day feature of opting neighborhood members out of the derby. This would be a better visual help for others new to the clan and a way to update people who forget to change their war status. They also would be able to return to the game and opt back in without having to lose their spot in a clan if they have been a long time member taking a break.