The 'sole manipulator' guff clearly only applies to single pilot aircraft
61.51e refers to two pilot aircraft in a separate paragraph. It requires that you be actual PIC, or on an approved PIC training program AND the actual PIC must sign your logbook to show instruction given. (IE: exactly what is known in EASA as PIC/us.)
The bottom line is: If you're an FO then everything is SIC whether you flew it or not.