Hi A'Mhara,

The difference is that the pages with a Turn Editing On button is the standard form in the software and the others, excepting dashboards, are embedded reports. There is not a way to put a block on all pages at the moment. 

The 'Add a block' drop down is populated through Plugins - the only way to add prebuilt blocks to the list is through code work. 

What content are you interested in adding through the blocks? We might be able to brainstorm other items with you.

Thank you!

Wes