Restricting drill down levels

[#1]

1  . I have to restrict a drill down dimension at a particlular level.How can i achieve it?

     For eg: i have a Hospital data and i have to drill down from "Doctor Type" to "Doctor Name".I have to restrict from the second level since i can see all the doctor names.

2.  How can i remove the internal associations between charts in a single page?

[rupamjyotidas]

When you make a drill down, you can always write a expression on the field level to restrict the data

[rupamjyotidas]

What did you mean by internal associations, you can always make the chart not selectable with filters by using set analysis.

Or just detach the chart:-)