A plain object with properties:
message [type: String, optional: true] - A message to display to users while in selection mode.
onFinish [type: Function, optional: true] - A function to call when selection is complete.
selectedIds [type: Array, elementType: String, optional: true] - The IDs of adapters to be initially selected.
focusedIds [type: Array, elementType: String] - The IDs of adapters focused and eligible for selection.