How can I delete/add Columns in my Report?

Hi everybody,
i´ve just a silly little question...
We´re using APEX to revise our Daily Reject-Rows and some other Dimensiontables.
For every Table, witch is to revise we´ve got a single Page in our APEX Application.
Also, in every Page we created a Report for our users,
so that they can revise the Data,
and published it in our intranet, using a Webserver.
Now my Question...
In one of these Pages we´ve more then 110 columns in the sql Region Source,
placed in the Region Definition.
But...in the Report Attributes, there are only shown 99 Columns.
I must integrate 3 or 4 more Columns from my Source Definitioned Table in the Report.
Where can i do this?
I only see how i can edit the columns, make them visible or hide them,
define their Propertys...but where can i add a new Column?
or delete one?
I´m very thankfull for every Awnswer :-)
Best Regards
LoneWolf

Ok, i found a Solution...
It seems to be a BUG. (?)
The Report Attributes will be realy generated automaticly
under using the Source Definition, but...
- There´s a Restriction in the Sum of all Columns,
it can be only 99 witch will be able to define and revise.
- If you´ver got more then 99 Columns in your Source
you have to specified them exactly, by Name
...AND...
- you have to create the Source SQL new.
It is not sufficiently if you change the Position of the Columns in the SQL Source (placed at the Region Definition).
I copied and pasted the Source SQL three Times,
before APEX accept the changes of the Position from the Columns.
At least...
In the Moment as i define the needed Column,
(now in the Report Attribute available),
APEX understands it an i can put the others Columns (Columns 99 till 110) back in the Source SQL, without loosing my needed Column in my Report again.

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