NOTE: The proofs required for each pre-sale stage are different and can be found in different tabs. If you wish to purchase in both Full Set and CryptoCitizen pre-sale windows, you will need to find the corresponding proof, even if minting from the same wallet.
Locate your BrightListed wallet address via a Ctrl+F or equivalent. Find the merkle Proof in the adjacent column -- it is a long string of text.
Select and Copy the ENTIRE merkle Proof in the adjacent column to your wallet address
Paste the copied Proof into the "Proof" tab where is says Proof (bytes32)
Click the "Write" button and confirm the transaction in your wallet