I am not 100 % sure if I am answering this correctly for you, but what I have had to do with my k-1 deductions other than entering them on the k-1, is enter them on the Additional Info for K-1s worksheet which I think flows to the Tax & interest worksheet and one of these flows to the schedule A. I have to 'work' it to get it to do what I want--it's all legal and I am not cheating, but I've learned to work the program to get what I want. I have called turbo tax every year to ask them to get a 1065, K-1 program for Mac--like they have for PC's .
