Wasn't that in the TV version? My DC DVD has that scene with a single shot.
The two-actors-in-frame shot elevator scene is seen in the theatrical version, the VHS/Beta/video disk versions, the single DVD and the two-disk Director's Edition DVD.
The intercuts-of-single-closeups version, where Saavik and Kirk are almost flirting with each other, was used in the ABC TV version only. Almost all the additions first seen in that version, edited with Director Meyer's input, when it premiered were
retained by Meyer for his DVD DE release, but not that shot. The ABC version also shortened the eel extraction scene a bit, and cleaned up some of McCoy's language.