Ohhh, I get what you mean now!!
Basically what you need to do is state that there's a scrolling texture and another regular one over it.
And then in your actual texture, you need to have the marking you want to scroll be transparent. Make sure it's saved as a .png and you state it that way in the .material aka CharacterBodyTex.png
You cannot use the preset in game for yourself. (well you
could but it would be way too hard and would possibly crash everyone around you? I think?) You have to test it in the campaigns.
Testing it in the campaign is pretty easy if you understand why materials are there.
Materials state that this mesh has this material. So Character.mesh uses CharacterMat as it's material and it's stated in Character.material. The campaign looks for CharacterMat, the custom material code you made to assign to the body, and loads it.
Sorry if I got a little carried away explaining, but I just want to help.
I know that you came from DoE which has a beautiful preset system, we have to think about either implementing something like that or at least making our process easier.