With ADT 9.0.0, all of these species have disappeared into Eclipse and have obviously returned to hierarchyviewer.
However, with ADT 8.0.0 and ADT 8.0.1, you have these viewing options.
Tree view
Tree View . . , View Properties.
Tree View, . , .
Tree Overview , .
Layout View, . . .
, , . Windows Eclipse, , , Load the view hierarchy into the tree view. , .
, Eclipse, hierarchyviewer sdk/tools.