Do I have to use IMCE?
No. Acquia Cohesion allows the site builder to select, either use of IMCE or Entity browser for browsing and selecting images.
Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
You can integrate social metadata as you would on a traditional Drupal setup. Information within the layout canvas can not be used as social metadata.
No, there are some known issues when using Acquia Cohesion with AMP, which we are working to resolve.
No. Helpers are coupled with the page once placed. Changes to the Helper layout will not affect existing instances.
Not yet. The Style builder does not have the option to add an animation name or key frames. This is planned functionality on our road map.
The Youtube video embed is responsive so it should expand to the width of its parent. If you do need to set a width you can apply the Width CSS property through the Style Builder.