I just wanted to set a stack row gutter in desktop and a different one in mobile, without having to create a custom phone layout. And I think that having the option to do it in the mobile tab of the sidebar would be great.

I ended up solving it with some CSS, so no problem

Thank you very much!!

if you dont use a custom phone layout, then you use the automatically generated phone layout which puts all elements on top of one another.

In that case, the spacing of the elements is determined by the spacing you set in Customize > Mobile > Mobile Spaces

But right now I see that unfortunately the spacing you set in the customizer for the automatically generated phone layout is used for the elements within the stack. But additionally, the stack row gutter is added to them as well.

Is that maybe the source of your problem? The space gets too large?

But of course I can also code a mobile setting for this. I'm just trying to understand better what your setup is so I can identify what needs to be done better.