I assume you mean door & window frames.
You can just leave them on the same as in plan view. This creates either a transparent ceiling plan or a reflected plan cut from a lower elevation. Many firms I know do this since it is easy and, if the switching layout is on the ceiling plan it keeps people from putting them on the wrong sides of doors.
If you want to minimize the appearance of the doors and windows, just change their pen in PlotMaker to gray. (I usually use pen 3 exclusively for doors & windows.)
AFAIK there have been no changes in this from AC7.