Resource management

With this, you can put a certain amount of money towards an upgrade. Players who are attacking cannot get this loot. However as this would be abused to save your loot, u can only put up to lvl 4 (unlock) 20,000 gold or elixir. Lvl 5 50,000 Lvl 6 100,000 Lvl 7 300,000 Lvl 8 500,000 lvl 9 750,000 lvl 10 1,000,000. you would not be able to withdraw the resources from the building and you can also put it towards troop upgrades.

No. The game already has a cap on the amount that can be stolen in a raid.