@brendamol96 Did you create a new Group Number, the first number in each row of the text file? I think incrementing that number is how you get separate line bodies. Try it and let us know if this is correct.

I did have them all listed in group one but no it did not work to give them different groups. After this I tried to make each group in a different notepad file but this didn't work either. Is there a way to change the cross-section of each line even though they are all a part of the same line body? Or how to make the program aware that I'm starting a new line body before I make the line? I'm attaching a picture of my lines (with suppressed surfaces since I'm adding plates as well) and the lines that I am trying to separate in four groups.nnn