There are many different types of blocks on your site. The ones you will encounter the most are the SiteID, Menu and Mini panel blocks. Within Drupal 7, blocks may be used in two ways. They can either be inserted directly into a Panel or Mini panel to be treated as in-page content, as discussed in Adding content and Mini panels. Or, they can be placed within one of the theme regions on your site and configured to only appear under certain URL paths. The latter is the topic of this section.
Using component styles covered all of the available regions provided by our theme. To recap, the regions that you will be modifying the most are the Site ID, Local Navigation and Local Footer regions. The steps to manage your blocks are as follows.
First, click “Structure” within your admin toolbar.
You will be taken to the Structure page. Here, click Blocks.
You should now see the Blocks page for your site. On this page, all of the blocks that exist on your site are shown. As you can see, the blocks are divided into categories; these are the theme regions with the last category being the currently disabled blocks.
When you want to move a block from one region to another or to and from the disabled category, you may do one of two things. You can either click-and drag your block into the desired category or you can open the region dropdown and select the category from there. Whichever you choose to use, you must click “Save blocks” once you are done for the changes to take effect.