Beta Released (

Beta Notes
Administer -> Tablespaces window has a new “include pluggables” checkbox that will cause the Space, Files, and Objects tab to include data from all pluggable databases. The checkbox is only visible when you are connected to a container database.

Describe Tablespace, as well as the Space History and IO History features do not work in this mode, but everything else in the tablespaces window should work with any tablespace that you select.