Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
Yes, you can build mega menus using Cohesion. Building mega menus requires advanced knowledge of jQuery in Acquia Cohesion and CSS.
Yes, the component link field supports both internal and external URLs.
No, the entity browser does not work for component defaults as the entities are content, not config.
Yes, this is possible by creating a custom element.
Modifiers allow you to apply styles to an element when a specific class, id or attribute is present.