What does 'Range' do in the menu element?
The 'Range' in the menu list item element sets which list items at the current level the settings should apply to.
Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
Yes, you can render react components.
Yes, you can add custom functionality to your site through the use of custom Drupal modules, sub-themes, and custom elements.
Google maps may not be showing if you have not set a Google maps API key.
Yes. If you're a developer you can create your own custom elements. These will appear within the 'Custom element' category in the Sidebar browser.
Yes. If you develop your own Custom elements you can use them within Components and make their fields editable within your them.