Oracle Database Object Sizing

May I change the Tablespace name of the Oracle Database Object Sizing (index and table) ?
I'm reorganizing the database tablespaces and I want change the defaults tablespaces.
Thanks for any help.
Thiago.

Hi,

You did not attach your configuration but in 8.10:

1. select Database data source.
2. Select System
3. Select the Data Source you want to change.
4. Click on Default size.
5. Double click on the Data Source
6. Change the table Space name for data and index.

It works, I just did the same change. Help it helps.