Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
No. You cannot expose block forms or settings in Acquia Cohesion component forms.
Yes. You can add Drupal blocks to the layout canvas using the block element.
No. Drupal provides the list of blocks to the block element.
Color tags allow you to create groupings of colors based off of the color tags that you define in the website settings color palette.
Yes, the generated templates can be saved to the database.
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.