Hi Memhet,
The script syntax is in the DBMS file which can be found by going to Tools---Resources---DMBS and selecting IBM DB2 Version 10 for z/OS. From there you would open up to:
DB2MVS10::Script\Objects\Table
You can modify the values, however, make sure to save it as a new DBMS file in case you need to return to the default.
Unfortunately I am not sure what needs to be changed or if it's possible, but this is where you would start.
Adam