Minting for whitelisted addresses only
option when you launched your collection (or you changed this setting via the Edit metadata page), you can use the whitelist manager feature. You can click the Manage whitelist button on your dashboard to change your whitelisted addresses.Remove from the list
section and submit the transaction. Due to the on-chain data structure, you're not able to remove multiple addresses at the same time. You need to remove one address at a time.