The professional trading feature allows you to visually view the K-line for accurate trading. On the left side, you can select the trading pair, and on the right side is the transaction details display area. Before trading, you need to use the wallet link on CoinSwap.com. Then select the token you want to trade, each token should be authorized before trading to ensure that there is the corresponding token to be traded in the wallet, and the authorization will consume a very small amount of GAS.