Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
Yes. You can create AMP pages that use the Layout canvas for content but there are a number of considerations.
You can only add combinators to child selectors. Add a child selector and combinator will appear in the Style tree.
HTML is escaped when using Drupal tokens in Site studio as a security measure, this follows Drupal core.
Yes, this is possible by creating a custom element.
You don't. You apply a Descendant selector. These use a (Space).