What is the Acquia Cohesion hidden region?
The Acquia Cohesion hidden region is a useful holder for blocks that you want to render using the Acquia Cohesion block element.
Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
No. Acquia Cohesion allows the site builder to select, either use of IMCE or Entity browser for browsing and selecting images.
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.
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.
Custom styles are CSS styles for classes.