Your comments

so, this actually doesn't work in the UI and the only way to do it is to modify the PHP pages?

On the site I'm trying this on to start with there are only THREE pages.  The home page, which is the blog page, an "About" page and a "Contact" page. 


I SHOULD be able to just disable it on pages on  only have it only appear on posts.  If only it did function.......  The developer settings are SO CLEAR that everyone found it easier to modify PHP code than to find what doesn't actually seem to be there...


I can:

Placement

Display buttons at the top of full(opened) post


Display buttons at the bottom of full(opened) post


and

Display buttons in the excerpts(previews) of your posts before the summary


Display buttons in the excerpts(previews) of your posts below the summary

display for posts at the main page  display for posts at all other pages


NONE of these perform the simple action of NOT DISPLAYING THE SHAREXY BAR ON A PAGE.  There are no other options