Yes without extra plug you must make only one surface "Push Pull" in the same time!

But........
There is the genial "Joint Push Pull" (free) by Freddo 6 ( a french guy ;) who made that you show in one pass!
http://www.crai.archi.fr/RubyLibraryDepot/Ruby/JointPushPull.zip


For the video I am rusted (no computer for 2 weeks) but trust me I can made that in a few days ;)

Ps A True Boolean plug is released by Whaat! (not free 10 $ ) http://www.smustard.com/script/BoolTools