Averos Grouped View Layout Description

A GroupedFieldViewLayout is a logical set of FieldViewLayout, ordered in the same view space and displayed as a single group according to a specific group layout.

A group of fields may have a label or may not.
In case a group has a label, all related fields are gathered under the same label.
Otherwise, no group label is displayed and the belonging fields are displayed one by one in the order they were defined into.