The only sub-category under investments that will show up is ESPP Income.

What are you trying to do? Many of the Investment sub-categories are used by Quicken internally for data calculations, but can't be used manually. For instance, you can't manually enter a capital gain in a transaction; Quicken calculates gains based on the underlying data of the sale price minus the basis, with the transaction dates determining long- or short-term status. If Quicken allowed users to manually enter transactions into these categories, it wouldn't be able to calculate the correct data for reporting.