how do i stop Research from fusing

[Ruddles]

I added a lot a new stuff to the tech tree but a lot of them fused with existing tech i know how to move them right to left and vise versa but i dont know how to move them up and down please help a newbie out


Edit: figured it out trying but now i cant exclude some of the tech i get a error message or it does not work

[Retreat1970]

In the research text file:
Example:

PROJECT ;0, Wave Weapons, 2, 1, 0, 19, 0, 2.8,
COMPONENTS ;4
PARENTS ;6, N

The value underlined is the row.