In official terms, COM3D2 doesn't have a single "Export Character" button that bundles everything into one neat file. Instead, a portable preset refers to a collection of specific file types and data strings that, when properly packaged, allow a maid’s appearance to be perfectly replicated on another installation—even with different DLC or mod sets.
To make this portable , users must also copy any custom textures from GameData/Texture/ or mod folders. com3d2 preset portable