not rly, i found in hex the lines needed (after decoding the .u file is pretty readable) , i found the exact position where the lines end in the old .u file, i pasted them there also in hex, saved the old file , even the float values were the same in bin code, but the game gives an error.
i m just saying the 99% of this forum is texture editing, adaptations when it comes to core, no one helps, i tried to adapt new maps, i did it in the end, but still no help here.
anyways ty for ur effort, seams yet again i m on my own.