If you split a part, you can preserve the appearances that are applied to
the new bodies when you save the bodies or when you insert the bodies into new
parts.
You can also preserve the appearance of a part that you insert into another part.
If a body that you save or insert has an appearance at the body level, the
software translates the appearance as a body-level appearance in the new file. If the
original body has an appearance at the face or feature level, the software translates
the appearance as a face-level appearance.
The saved or inserted parts are derived parts. If you change an appearance in the original part, the change is propagated to the derived part.