Adapting orthogonal scrolling behaviour

I have a compositional layout with one section that scrolls orthogonally.

For the groups that are not at the ends of the scroll, I want them to follow groupPagingCentered behaviour, so I set the orthogonal scrolling behaviour accordingly.

However, I want the group at the beginning of the scroll to be left justified (groupPaging behaviour) and the group at the end of the scroll to be right justfied, without changing the separation between groups.

How can I achieve this? (need to support iOS 13)

Adapting orthogonal scrolling behaviour
 
 
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