How to input to new form 8949?

I want to report a long term non-business bad debt.  'Help' says to put it on Form 8949 but system won't let me put it on a Form 8949 saying all info on that form is generated from Sched D.  But my loss is not on Sched D.  So how do I report it?? 

System will not let me open a new empty Form 8949.