To be able to edit the code setup (category, sub category and type), without having to reopen the books to the beginning, would save a lot of time, especially when the code has not yet been used.
Example - changing the code from a detail stand alone to a detail, or fixing a code that has been labeled as a roll-up, which should have been a detail.
The ability to change a category, subcategory, or even an account to its proper place should be a simple edit. This should be more user friendly.