In reply to Andrew.

Very neat idea about changing the Group block on the site level instead of the post content level. Honestly, that didn't even cross my mind. That makes a ton of sense and offers more flexibility now that you mentioned it. You are definitely looking at things from a different perspective, which is something we all need to start doing.

I'm still not a fan of the No Bottom Margin feature as a block style. But, the tools just are not quite there in the editor for us to handle that much better. I'd really like to see some margin controls for core blocks, especially for things like columns.