found an interesting occurrence with the "Select Page element" option in the assistant and elements one has selected to hide not being hidden.
http://www.huffingtonpost.com/2012/03/11/krasna-horka-fire-smoking-children-slovakia-castle_n_1337606.html?ref=mostpopular

the selected region cannot be hidden even after adding a rule using the "Select page element" option to hide it.
http://www.huffingtonpost.com/2012/03/11/krasna-horka-fire-smoking-children-slovakia-castle_n_1337606.html?ref=mostpopular

the selected region cannot be hidden even after adding a rule using the "Select page element" option to hide it.