...
Place the HTML code in the code input area for the new block and set the location (where on the page you want it) and controller (which page should it show on). For our screenshot below of a google Google ad, we chose Sitewide as the controller as we want it all over the site.
...
Once you have created a placement you or your users can now create ads if that membership group has permission to do so.
User Group Permission
Lets Let's make sure users are actually allowed to create ads, by default this is disabled. So lets let's enable it for Admins.
Head over to
...
At the bottom of any page of your site, you should find the link Advertise. Visit the page and you should find a link CREATE AN AD.
...