Keep clan castle troops and share spells

I was wondering if it would be a good idea if any of your Clan Castle troops were to survive the battle if you'd have the option to return them back to the Clan Castle. And my other idea was you are able to send spells each spell being qualified as maybe 7-10 troop space, and when you go into battle it automatically disperses into your troop viewing box on bottom. And if you leave the battle the spell automatically goes back into your Clan Castle and an extension to the Goblins Campaign maybe change the target we fight, such as goblins to golems . Thanks to everyone who views this. :)