Multiple CMS Collection types on the same Collection List

I have 2 CMS Collections, ‘Blog Posts’ and ‘Downloads’

The collection items for both contain different fields and values. The page design is also different. For example:

  • Blog Posts: Name, Image, Date, Text, Tags
  • Downloads: Name, Download Link

I want both items to appear on the same CMS collection list
So the user sees both ‘Blog Posts’ and ‘Downloads’ items on the same Wrapper.

How do I accomplish this? It appears that I can only add one CMS Collection type under Collection Link Settings > Source

Thanks in advance