Custom query for Visual Composer's Post Grid in Word Press

Question

A site in Word Press. It has several custom post types. Each of them has several taxonomies that, coincidentally, are the same. Specifically:

 - Press <-- CPT
    - Country   <-- Taxonomy
    - Theme 
    - Department

- Resources
    - Country
    - Theme
    - Department

I'm using Visual Composer and need to use the Post Grid module, which lets you create a custom query in "one-line" format such as posts_per_page=3&post_type=post&post_status=publish&orderby=date&order=DESC

THE QUESTION

What's the one-line query to output the most recent 5 posts from BOTH custom post types within the taxonomy "Country"?

Answer 1

Found the answer! The string has to be URL-encoded containing an array for the field "post-type" and also the "[ ]" characters are not allowed so must output the url-encoded value which is %5B%5D.

post_type%5B%5D=press
&post_type%5B%5D=resources
&cat=country
&post_status=publish
&order_by=date
&order=DESC