In Toad 10, I cannot pull up 'Datafile Definition' window by double clicking on datafile name in (4270145)

I go to Database | Administer | Tablespaces (or access it from the Schema Browser). In the Space tab of the View Tablespaces window, I can double click on a tablespace name; however, at the Alter Tablespace pop up window in Toad 10, double clicking on any data file no longer opens the Datafile Definition window.

WORKAROUND:
In Toad 10 you have to click on the Alter Datafile icon.

STATUS:
Enhancement request has been submitted to Development for consideration in a future release of Toad for Oracle.