At first, we need to edit some template files (make sure you BACKUP and edit the template files in use!).
Using an Editor of your choice, open /templates/my-template-in-use/templateDetails.xml and ADD two new template positions called floatercontent and floatercontainer,
using the following code inbetween the positions tags (copy & paste the two bold lines below):
<positions>
...
<position>floatercontent</position>
<position>floatercontainer</position>
</positions>