Hi Kishore,
please refer to the documentation of the customizing item in the RE-FX IMG:
- General Settings for Master Data and Contract
- Additional Texts
- Define Categories for Additional Texts
The documentation of the customizing item provides a link to the 'Manage Text Modules' activity. (you can find it also in 'Tools - Text Modules - Manage Text Modules). Using this activity you can edit and copy text modules.
With this activity you can copy existing text modules, that means you create an additional text for a contract offer in application and then copy this text and assign text-ID CAAS.
I hope that this information is helpful for you.
Regards, Franz