How do I create Form 4797 Part III Lines 19 -24?

How do I create Form 4797 Part III Lines 19 -24 to input Gain From Disposition of Property under Sections 1245, 1250, 1252, 1254, 1255? 

 

In the Forms section, TT only shows Form 4797 Parts I & II.   There is no Part III.

 

Form 4797 is not showing up in my tax return. 

 

Thank you.