Hi 
It’s already working, do you mean the columns appear side by side on mobile? If so, then no, it cannot happen.
However, you can create single column strip and move the elements around side by side.
Thank you for reply. In a desktop version I have 4 columns in a strip but when I switch to mobile it only offers me 3-column strip and the 4th one drops out of the strip. I want them vertically. And of course if you try to work around that a make 2 strips each of 2 columns, it changes and messes up the desktop version…
@contact13260 Have you checked the hidden elements on mobile? Perhaps the last column is among them.
@ahmadnasriya It is not. And it can’t be, because mobile version allows you only 3 columns per stripe.