Auto Layout Childrens width relative to grid

Hello,

I have a frame with a 12 column stretched grid layout. 
In this frame I have an autolayout (left/right). The left container is also an autolayout with text in it.
the text width is relative to the grid. When I resize the whole frame the grid resizes and i want the text width to also resize as the grid.
See this video for reference: https://fspee.com/elementor.mp4

I have the same problem when the left/right are not 50/50 but have 5/12 col + 7/12 for example.
I guess it’s the same issue.
See this video for reference: https://fspee.com/elementor-2.mp4

Is this even possible?

Thank you.