Replace zero values & removing summary columns in chart but not in cr

[bicognos]

Hi All,
1)When column and rows shows ZERO values,i use format measures
=>Blank=>Selected zero values.Now my column and rows are
BLANK, i need to display N/A in blank area.

How do i do it ?


2)From my drill down i use calculated field to sum 2 columns and use any
chart type it displays calculated field in it.Now i need to remove the
calculated field in my chart display, we have option to remove summary
columns....but i never see any other option to remove calculated
field.

I have removed it by right click in chart display, when i do that
it removes the same in my crosstab this should not happened.What is the
solution


Please let me know the solutions ASAP.

Thanks,
Narasimha