Investors & landlords

In following your advice, I'm trying to enter a loss from box 1 on the Mock K-1 into Form 8582, Worksheet 3, box b (per instructions on www.irs.gov/instructions/i1065sk1).  I am working in forms mode, but the software is not allowing me to enter a value in this spot.  I have no override ability.  TurboTax is only pulling data from other forms, including the K-1, but not allowing direct entry.  I do have passive activity loss limitations that will require me to carry this loss over to next year, so I do need to use Form 8582 instead of entering this directly onto Schedule E.  Can anyone advise on how to enter this data on Form 8582 given the software restrictions?