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.
Yes. You should revision your Acquia Cohesion assets like other configuration using a service like Git.
You have to upload a JSON file to provide the index of the icons within your chosen icon font.
You can create more than one template to provide layout and style alternatives with the use of the template selector.
Yes, this is possible by creating a custom element.
Cohesion layout revisions are created at the same time as node revisions, but not always deleted at the same time.
Use the "Node Revision Delete" contributed module to manage your node and associated Cohesion layout revisions.
Use the tools included in the "Entity Reference Revisions" contributed module.
No site specific data is stored on the API.