Hello Simeondhuman :waving_hand: Welcome to the Community :party_popper::party_popper:
If your wanting to change the name of an account in your Chart of Accounts ( General ledger) you can do so by going to Accounting>COA> right-hand side will be an arror>Click into the error to the account you wish to rename> and click edit>edit the name of the account.
If you are wanting to change the category you will need to make a new one up and change all your expenses etc to show the new name.