With uTrade V2, Liquidity providers need only provide one side of the pair (you can still choose to add to both sides if you hold both tokens). If adding to only one side of the pair, the smart contract will automatically sell half in order to purchase the other side of the pair and balance the pool of liquidity.
Note: Supplying Single Side Liquidity will use the provided token to buy the other token in this pair. This buy may incur significant slippage if there is not enough liquidity in this pool, resulting in a significant difference between price executed and the quoted price. Be careful to manage this risk accordingly. You can set your slippage tolerance to help manage this risk. Learn more about slippage tolerance here