Dynamic List - Masonry Style Layout

[sabanna (Anna)]

One of the solutions (I think there could be more):

1. add 2 columns row to the container
2. add dynamic list to every column, but limit elements: 1st column= 1-4, 2nd column = 5-9
3. show dynamic list itself not like columns, but like elements stuck on each other.
   Here is result:
   
   

Regards,
Anna