Ah, something went wrong when responding to you, I have adjusted my previous response. Solution 2 is using a floating group, so technically it is possible to Bubble it. 
In short with the floating group:
- Set the page to layout column
- Add a group, this will be the header (green in my previous reply)
- Add a floating group and add left and right groups to that floating group.
See the settings for the various groups in my previous reply.