Go to definitions, 'Chart of Accounts', 'Add'. Enter the new account number and its description, then enter a 'D'ebit of C'redit for which type of account and which side of the ledger will hold the balance. Then assign the account as a 'D'etail if the account will hold own balance and be posted to; or 'G'eneral if the account will hold the totals of the detail accounts under it and not be posted to directly.