Tax report and TXF

[Michael Churchill]

I am using gnucash 2.6.8, trying to use the tax reporting functions.  
When I try Edit-Tax Reporting Options, I can select an account, such as 
Interest Income from a bank.  I am not allowed to select a Schedule or 
TXF category.  The report does provide a list of interest income for the 
year, but does not assign it to a schedule and does not export any TXF 
data.  If I add a stock dividend account, it is listed by itself, but is 
all part of the same report.  This is my first try at tax reporting.  
Have I missed a step that enables assignment of income and expenses to 
schedules?