Just few days ago our 'beginner tester' friend somehow managed do mess up or even add nodes at the very level. Unfortunately, he didn't memorize any details, so now we're also keen to find that out ;) By the way, our installation of eZ publish 3.8.7 stopped showing structure where it should be. We found it in the trash, instead :))
This is very easy with Web Developer plugin for FireFox:
- Login to admin interface
- From WebDeveloper toolbar select Forms->Display form details
- Go to panel where you normaly create new subnode, find highlighted <input name="NodeID">
- replace existing value by 1
- Select your desired content class, for example "Folder"
- Click to create here - Enjoy
There is one problem only: url_alias will not have proper name, but probably you can edit it directly in database in some tables.
If you don't have FireFox with Web Developer you can just create simple extension with form, and just put "1" as value of NodeID (parent node).
One more thing: I can't guarantee that new node on this level will work without any problems, so I don't recommend you using it :)
Here is the link to the 'Web Developer browser addon for Firefox', This adds a menu and a toolbar with various web developer tools. <i>https://addons.mozilla.org/en-US/firefox/addon/60</i>
