Using English as a language pressing Rename (image above) I get a dialog box where I can type in the new name. But the name is is not changed or updated.
Using the selected language chosen using the Wizard at setup (Icelandic) the Rename does not work. When I click it there is no response.
But I can easily delete and then add a new account.
I know you are making a lot of changes to the charts of accounts in version 5. Is it possible to install version 5 to see how things are progressing there?