As the shown option does not work in fast way for us i did the following:
- set parameter for each database field that could be shown
- made formula field for each parameter in which i have an if then else clause where if yes the field is shown
Now i have all fields in my report and with the option do not show when "0" i can just display values greater 1.
Now i got just one more thing - i have the fields from left to right. Even when there are no values to show as there are just "0" values the space is blocked in the report. Is there a chance to delete a column if the values are "0"?