Assuming a block content appears in many pages, you want to edit it, then what will you do? Content Template will help you. By using Content Template, you can place the block content in every pages (even choose its position in a page), and you need only one change to change all these block contents.
Note: If you leave these fields blank, they will use values from the ones in “theme options” preset (set to current page) as default.
With Content Template shortcode, you can place it everywhere in your page.