Total Income

Special Receipts on Total Income report

Did a search with no luck.
Where is the Special Receipts values comming from? It appears the 529 Account Income & qualified Withdrawals are part of the answer.
On the Main.xls > Total Imcome tab, Special Receipts correspond to Income & the expenditure of 529 funds.
I don't understand why 529 payments are Income.
What other items are included in Special Receipts?
Should Special Receipts be included in the Glossary?
Thanks, Steve

AGI vs Total Income

For 2015, I've noticed that the AGI shown in the "Federal Taxes" report is several thousand dollars - about 4% higher - than the "total Income" shown in the "Total Income" report. Can you please explain why this should be occurring?