You can view a list of historic transactions which have taken place on an account via the account page
Click the Accounts tab on the left of the screen and search for the account where you would like to view statements. Click on the Account Name to view their Manage Account page.
Click the Financials button to view all historic transactions on the account. All historic transactions will show here, so you have a full history of the account balance as and when payments have been made, or statements raised.