no you just need to put all of the markings in the "textures" folder and go into the Markings .CFG file. (open with notepad)
type the names of the Pictures EXACTLY. if the picture has a capital letter, put it as a capital letter in the Markings .cfg file and make sure everything goes like this NameofMarking;cmarkNameofMarking(Body, Head, Tail).png
and the markings do not show in Preset maker. only when you create a character. hope this helps!