If I use a Drupal block in a component, can I expose the block settings in the component form?
No. You cannot expose block forms or settings in Acquia Cohesion component forms.
If you add a Drupal block as into an Acquia Cohesion component using the Block element, you cannot access the block settings or expose them to users of the component. You have to configure the block settings when you place it within a Drupal region.
For more detailed information, see Block element in the user guide.