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.
If you’re trying to rotate the element front on, use the Z rotate property.
Yes, this is possible by creating a custom element.
No site specific data is stored on the API.