(optional) The options object for the folder node. Structure:
filterObjectTypes [type: Array, elementType="dundas.ObjectType] - (optional) The filter type, if any.
hideSubentries [type: Boolean] - (optional) If set to true, sub-entries of files will not be loaded.
allowSetActiveProject [type: Boolean, default: false] - Setting this will cause the explorer to allow the user to set an active project through the right click action.