problems with gwt

Hi,

I've found some difficults with gwt, I've been trying to put paging
grid into a grouping store but i can't. I can see the paging in the
bottom of the list of groups but i want to put paging inside each
group and i can't. if somebody has an idea about it, please tell me
because i'm lost...
Also I've got another problem hiddind columns of a grid. I set the
parameter setHidden in each column to true. But I don't want to see
this column when I
push on the drop down button. I try it with css style but I still see
the column, what can I do??

I put some code of the column configuration:
ColumnConfig reportDateColumnConfig = new ColumnConfig("",
FIELD_DATE_REPORT, 0, false,null,FIELD_DATE_REPORT);
reportDateColumnConfig.setHidden(true);
reportDateColumnConfig.setCss("overflow: hidden;");

I hope somebody could help.

Thank you very much

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