But the problem of balancing the left and right columns of odd number of lines persists in your solution.

in the original document that i have attached (the number of lines in the left side are 15 and the number of lines in the right side are 14), so I have balanced the two sides by adjusting the line spacing of the right side to 11,8 pt and kept the line spacing of the left side to 11.

I needed a paragraph separator between the two sides so I can adjust the line spacing of one side without affecting the line spacing of the other side.

I also need the middle line separator to stay exactly the length of the two sides.

is there a solution for this?