Create a new "Covers" block to replace three existing blocks (which will be later retired): Take Action Covers, Campaign Thumbnails, and Content Four Column
Add a 'Manual Override' element so the Editor can choose which Take Action pages, which Tag Page, or Post Content

Take Action Covers selected
Enabled: Title, Description and Number of Rows Displayed, Tags
Disabled: Post Type
Manual Override: Tags are also Disabled
Manual Override should only look for Pages which are a child of Act

Campaign Covers selected
Enabled: Title, Description and Number of Rows Displayed, Tags
Disabled: Post Type and Manual Override

Content Covers selected
Enabled: Title, Description, Number of Rows Displayed, Tags, Post Type
Manual Override: Tags and Post Type are Disabled
Manual Override should only look for Posts