I'm trying to set up classes to track functional expenses (program, management/general, fundraising). Currently I have donations received from a specific fundraising event in a sub-class under Fundraising, and donations received for a particular program in a sub-class under Program. How do I class donations that aren't specified for a particular program?

Ex:
1. Program
1.1 Support Groups
1.2 Conferences
2. Management/General
3. Fundraising
3.1 Ice Cream Social
3.2 Trivia Night