I would like for there to be some type of differentiation between Styles in documents when copy/pasting or bringing in new styles. Old styles get mixed up with new ones, some have the same names (body copy for example) so it's hard to tell which ones are from pasted copy and which are the ones I'm currently using in my document.

Open to any format as long as the Styles from the original document are all in one grouping and any styles from Copy/Pasted text are in another distinct grouping. This could be done by folders, or color-coding, splitting the tool window, etc