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.
Google maps may not be showing if you have not set a Google maps API key.
Yes, this is possible by creating a custom element.
Modifiers allow you to apply styles to an element when a specific class, id or attribute is present.
Custom styles are CSS styles for classes.