Once again, an amazing series of updates. Thank you so very much. 
These two are a very large step forward in improving the editing experience in Rich Text fields.
And I think a combination of these two could be used to enable another very helpful feature we had discussed earlier this year: nested selection (and therefore moving) of all the descendants of a block (section), e.g. a heading’s or even a list item’s sub-items.
If you could add to the heading and list-item blocks menu: Select with descendants or Nested Select or something like that, then could, for example, grab and move everything logically inside a heading or under a list-item.