You could change your mining revenue receiving address at any time.
After logging in, please click the Dashboard - Payment settings - Address Settings.
Next select the "Reset" and add your new address on the "Current address".
Click Next, then click "Get Code", you will receive a verification code in your email inbox, enter that code and hit "Confirm".
Then all of your mining revenue would be sent to that address.
Minimum Bitcoin withdrawal amount for Bitcoin: 0.005 BTC
Minimum Bitcoin withdrawal amount for Bitcoin cash: 0.01 BCH