The first steep for clone a unit is rename all names of the files with the same name of the folder. And change the classname in .cfg for other.
The names of the objets in the dat don't need to be change. It's a reference at object but it not have influence in the object. Except names like cfg#a01_name_ship .... cfg#a01_ have references with the equipment.
Sorry AG124 i can't do a tutorial of DOS for you now.
This tool not is finished, it's only the firts steeps. The windowed version when i will solved problems with other functions like import a obj.
P.D. This seem a on-line tutorial