For Regulated future contracts, in turbo tax (section 1256 contracts) asks for 8 - Account description what to put in?

For Regulated future contracts, in turbo tax  (section 1256 contracts) asks for 8 - Account description. In my 1088 B its a profit or (loss) realized in 2017 on closed contracts (a dollar amount). 

Box 11 - Aggregate profit or (loss) on contract is populated. 

On Turbo tax what do I put in 'Box 8 - Account description'?