Layer groups are used to gather layers by theme/subject in the map viewer.
- Name : visible denomination of the group in the layers tree
- Alias : internal denomination of the group in the map viewer.
The alias 'background' is a reserved word used by the viewer to identify the background layer group (typically, a background layer group contains exclusive base layers).
As background group is defined by context and is not an intrinsic property of a group, the used of this alias is protected.
- is default open : initial opening status of the group
- Access level