Today, I am guessing, I will be answering to my own questions :)
The answer for this one is this:
Change:
{{ cms:partial:snippets/my_partial }}
To this:
{{ cms:partial:snippets/my_partial:"your value you want to pass in"}}
And then in partial you can use:
<% my_partial.each do |item| %>
<%= param_1 %>
<% end unless my_partial.empty? %>
See documentation at https://github.com/comfy/comfortable-mexican-sofa/wiki/Tags You can pass as many parameters as you want. I somehow missed that when I was first reading.