Tablespace DDL Execution

When F3 (End) is pressed from the Create, Alter, Template or Drop screen, a confirmation screen appears before the DDL is executed. Accept, edit, or reject the DDL to be used to complete the request. 
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When F3 (End) is pressed from the Create, Alter, Template or Drop screen, a confirmation screen appears before the DDL is executed. Accept, edit, or reject the DDL to be used to complete the request. 
If your changes are complex, require dropping and recreating objects (and their dependencies), or the current CA RC/Update Operation Mode is set to A (RC/Alter), you can perform a complete analysis of your changes that includes rebuilding the DDL and optionally including utility statements and extended DDL generation and analysis options.
Confirmation Options
A Confirmation screen appears before the DDL is executed.
Press Enter to execute the displayed DDL (online mode), write it to a data set (batch mode), or pass to RC/Alter and CA RC/Migrator to control DDL statement generation (RC/Alter mode). During the online DDL execution, the Audit Message File appears. This screen displays completion messages and return codes. If there are errors, all statements are rolled back. Use the scrolling keys to review all messages. Press F3 (End) or Enter to return to the previous screen.
Enter 
E
 (Edit) to edit the generated DDL statements using the CA RC/Migrator DDL Edit Facility.
To refrain from processing the DDL, press F3 (End). The previous screen reappears, where changes can be made to the request. Enter the CANCEL command to cancel the option and return to the Main Menu or process the next items for Alter and Template options.