Default values for files and columns when adding a discoverer porlet

Hi, i'd like to know how to configure the default value for numbers of columns and files when i add a new discoverer porlet in a portal page.
The actual default value is 10 files and 6 columns and i always have to increase it to at least 100x100.
Is there any config file where i can change that?
I've found a configuration.xml in $ORACLE_HOME/discoverer/config/configuration.xml
with a section
<!-- Discoverer Servlet configuration. Defines behaviour of both
discoverer/plus and discoverer/viewer servlets -->
but couldnt find a parameter for those items.
Thanks in advance.
Daniel Perez

I think triggers are the best device.
Scott

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    rac01:/software/backup>exptest.dmp log=exptest.log <
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    Copyright (c) 1982, 2005, Oracle. All rights reserved.
    Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
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    . exporting PUBLIC type synonyms
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    About to export SIMAR's objects ...
    . exporting database links
    . exporting sequence numbers
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    . . exporting table ABC 12 rows exported
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    rac01:/software/backup>exptest.dmp log=imp_exptest_1.log tables='ORDERS' <
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    SQL> conn / as sysdba
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    SQL> set heading off;
    set echo off;
    Set pages 999;
    set long 90000;
    SQL> SQL> SQL> SQL> SQL>
    SQL> select dbms_metadata.get_ddl('TABLE','ORDERS','SIMAR') from dual;
    CREATE TABLE "SIMAR"."ORDERS"
    ( "DEPT" VARCHAR2(20),
    "PLACE" VARCHAR2(20),
    "INTCOL" NUMBER(*,0) DEFAULT 12,
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    USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
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    ) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
    TABLESPACE "USERS"
    SQL>
    Here the alter table statement is in the dmp file as well as in the imported table.
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