You do not need to use coin control but, simply add a POS address.. Then, You set the new address as the savings address. Will post thr directions for each separately.
When you go to spend coins and both address are within the same wallet you will need to use coin control to choose from the address of where you want to spend the coins from. Otherwise it will 'auto' choose some input and some of them might be from your 'Main' wallet. To do it without using coin control you will need two wallets.