Delete Obsolete "Required" Categories
It would be great if it was possible to delete old, obsolete categories listed as "Required" that were once included in the default set of Quicken categories, but are either no longer are a default category in modern versions of Quicken or have been replaced by new, more specific versions of the same category. For example, when I first started using Quicken there was a default, required category called "Investments" with a subcategory called "ESPP Income." If I were to create a fresh, new Quicken file today, this subcategory would not exist. Rather, under "Investments" there are subcategories for "ESPP Self Income" and "ESPP Self Income (Spouse)". In addition, the new category of "Investments" with all of its subcategories only shows up when you are in an investment account.
The old, outdated "ESPP Income" subcategory is still hanging around and shows up in the category list for all accounts, whether they are investment accounts or not. And even though it is not included as a default category in Quicken now (and even though it is unused), it is still listed as "Required" (from earlier versions of Quicken) and as such cannot be deleted.
Please make it possible to remove these types of old, obsolete categories (as long as they are unused) or to have them be replaced/overwritten with the newer categories when selecting the "Add Default Categories" menu.