Separate Clan War and Normal Base versions
Clan wars is a massive pain in the behind; in normal mode my priority is to protect resources, but I have to completely change my base to protect TH and Clan Castle for a clan war, plus I have no control over when the snapshot of my base is taken, so I would have to leave my silos at the mercy of attacks whilst I wait for a snapshot to be taken.
It would be much better if we could save a separate Clan War version of our bases rather than having to constantly rearrange them every time we are in a clan war....