I am attempting to follow this tutorial about manually editing my wrinkle maps. (https://manual.reallusion.com/Character-Creator-4/Content/ENU/4.2/06-Wrinkle/Editing-Source-Maps-for-Changing-Wrinkles.htm)

I get to this step. Step 4.
 
The texture settings are greyed out. There is an "i" that says "Adjustment disabled when wrinkle textures are flattened"
Thanks for that info LOL but like, How do I Un Flatten them?
Searching this phrase in the online manual has no results. 
 Thanks for looking!