If I change a Helper layout, will it change where it's used?
No. Helpers are coupled with the page once placed. Changes to the Helper layout will not affect existing instances.
Acquia Cohesion renames to Site Studio from version 6.2. Tell me more.
The style preview may not be updated because the refresh icon hasn't been toggled to the active state.
No. Site Studio allows the site builder to select, either use of IMCE or Entity browser for browsing and selecting images.
Yes, the component link field supports both internal and external URLs.