Main Wallet — what is it?
As you know, tokens (ERC-20, BEP-20, TRC-10, etc) don’t have their own blockchain system designed especially for them, they live on another coin’s blockchain and benefit from it.
If you see this menu, it means you have to select the mainnet address where you want to store your tokens. By default our system chooses the Main Wallet, but you're welcome to pick any address already created in your wallet or add a new one.