New files for loop modeling

Hi,

I have a question about new files for loop modeling - 650_LoopsKIC.py and T660_LoopBuilding.py .
I need generate N decoys and get N pdb files, and score them. How to implement these new files for that.
Do I need fragment files for loop generation if I use these files, like for old loop_modeling.py?
Unfortunately I did not find any reference for that.
What new features they have compare with loop_modeling.py ?

Thank you, Victor