Your account categories have been set up to automatically display in a certain order: Checking, Savings, Money Market, Certificate of Deposit, Credit Cards, Mortgage Loans, etc. However, if you happen to have multiple accounts within a given category (e.g., two or more savings accounts), you can change the display order of those accounts.
The account names or nicknames within a category appear in alphabetical order, so you can change the account nicknames so the accounts display in the order you want, e.g., My Savings Account will display before zAdvantage Savings Acct because of the added 'z'.