One apparent difficulty that has risen with more and more blocks leveraging child blocks for controls (Buttons, Social Icons, Navigation, etc) is a general lack of intuitiveness when it comes to modifying attributes of the parent. Example: changing the alignment of Buttons when editing a single Button; changing the color of Navigation (a parent block attribute) when editing a single Navigation Item.

To address this, I'd like to explore ideas around when and how the toolbar and sidebar controls of a parent block could be exposed on their children. There are many challenges around clarity to overcome. This should not be a default true property, since groupings like Group, Columns, Cover, etc, should not present this behaviour.