Sub-Categories For Better Organization

It would be great to have sub-categories to better organize expenses. For instance, I can currently categorize as Expense/Advertising, but it would be good to further categorize by vendor, such as Expense/Advertising/Facebook or Google Ads, etc.

We also run a nonprofit, and we give grants and contributions to other nonprofits. Similar to above, it would be great to categorize as Program Service Expenses/Grants and Contributions/[Charity Name], for better record keeping and reporting.