OptionalqSpecifies the class of the group's object members.
One of:
OptionalqSpecifies the type of the group's subgroup members.
OptionalqInclude all groups of the relevant type, by adding those groups last that are not explicitly included in the hierarchy (orphans)
OptionalqThe group's label. Will be evaluated as an expression if it starts with '='.
OptionalqThe objects and sub-groups that are members of the group.
OptionalqSpecifies the type of the group's object members.
Defines the properties of an object group.
Stability: experimental