Open imToken and switch to ETH wallet, enter the ETH wallet node setting page through "My Profile - Settings - Node Settings - ETHEREUM".
Click "Adding Quickly" to jump to "Chainlist", slide down and find Optimistic Ethereum or xDAI Chain, click the "ADD TO METAMASK" and select "Approve" to set up the network.
After setting up successfully, it will be connected to the corresponding Layer 2 network, the name of the network will be displayed at the top of the page, and the number of coins owned by this address will be displayed on the wallet page.
How to set up custom token
imToken's custom tokens feature supports users to add tokens owned in the corresponding network by contract address. Click the "+" button on the wallet page, select "Custom Token", enter the token contract address and click the "Save" button in the upper right corner to complete the operation of adding tokens.