Hello Superxfast,

You need to encrypt wallet from menu setting and make long passphrase after you ok to enter passprase your wallet will be close.
Open your wallet again and you will noticed that your wallet was lock and then you need to go to setting and choose unlock wallet and check the option for staking only and enter your passphrase to unlock for only staking (minting).

This could be help because if you lock wallet no one that control your pc can't send your coin until they know your passphrase to unlock the send command.

ํYou can lock/unlock anytime you want but if you don't unlock the wallet you will not recieved any staking.