Unity UI Scrolling (vertical) through ScrollView objects (horizontal) not working

Hi, I have a pretty "niche" problem I guess. I have a vetical ScrollView object that has several grids as children, each of these have a horizontal ScrollView to see all their respective objects. When trying to scroll vertically, if I initially touched one of the horizontal child ScrollViews, it doesn't work. I guess it's because it's trying to scroll in the child object. Any idea how I could make this work? Or if it's even possible?

A screenshot for clarity. The vertical ScrollView only works if I touch the background and not the objects inside.



Thank you very much!

 

Bump! Nothing? Not even a confirmation that this can't be done?