How can I enter information for the 28% Rate Gain Worksheet (line 18 of Schedule D)? Which information needs to be added?

[Just-Lisa-Now-]

The QuickZoom button at the top of Sch D will take you to place to choose Collectible as the type of sale and prompt you through the details.

[haroldshin7112]

I received a letter from the IRS regarding a rental property sale.  They re-calculated the tax adding the 28% Rate Gain tax. 

When I go to Line 18 of Schedule D, it doesn't allow me to enter information to calculate this amount.