Layout Concepts
The dashboard arranges dashboard items and groups using layout items and layout groups. They are special containers that are used to present a dashboard layout as a hierarchical structure.
A layout item is used as a container that displays an individual dashboard item.
A layout group is used as a container that is used to arrange layout items (or other layout groups) either horizontally or vertically. At the same time, layout groups are used as containers that display dashboard item groups.
Thus, a dashboard layout is hierarchically arranged from the root layout group to bottommost layout items, which display individual dashboard items.
