Dividing a number of branches into two branches

Hello! I am sorry for posting again, but I am having difficulties trying to reducing the number of branches from 48 to 2. I am sure it is an easy question, and has multiple solutions, but I have 48 branches with two sets of lines, and I want only two branches (one with the line above and the other with the underneath). 20190724_Q&A.gh (15.8 KB)

Thank you very much

the Flip Matrix component, (Sets -> Tree), would get you two branches, with 48 items per branch. place it after your Line SDL component.