How to change a Hero Element on Communication page full size when using a side column?

Question

Hi,
We have created different communication sites and the first pages we have created are in the style we would like them to have.
The hero element is filling in the full size.

But on our new pages it is not possible to achieve this full size anymore. At least for us.
What do we need to change to get the picture/Hero element in full size?

Thanks for comments/Help on this one.
Dominic