Group selection structure creates new tile in first step of request access wizard UI (person of interest). Tile button will allow user requesting access to select other users from collections specified by collectionRef or filter.

Item Summary
Name	Type	Multiplicity	Description
identifier	property string	[1,1]
display	container DisplayType	[1,1]
collection	container CollectionRefSpecificationType	[1,1]	Specification of an explicit or implicit object collection (including reference to the collection).
searchFilterTemplate	property SearchFilterType	[0,1]	Search filter template with expression that is used together with collection ref specification.
userDisplayName	property ExpressionType	[0,1]	Expression that can be used to return String value which describes user object returned by search.
autocompleteMinChars	property int	[0,1]	Minimum number of characters that needs to be typed into autocomplete widget before search will start.

Items
- identifier
  
  Flags: RAM,runtime
  
  Multiplicity: [1,1]
- display
  
  Flags: RAM,runtime
  
  Multiplicity: [1,1]
- collection
  
  Flags: RAM,runtime
  
  Multiplicity: [1,1]
  
  Specification of an explicit or implicit object collection (including reference to the collection).
- searchFilterTemplate
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Search filter template with expression that is used together with collection ref specification. Expression should use variable "input" which will contain value from autocomplete text field used for search. By default, SUBSTRING search on UserType.name is used.
- userDisplayName
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Expression that can be used to return String value which describes user object returned by search. By default, `user.getFullName() + "(" + user.getName() + ")"` is used.
- autocompleteMinChars
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Minimum number of characters that needs to be typed into autocomplete widget before search will start. Default value: 2