created an attachment (id=160587)
screenshot

description:
the context help can not be found for add cascading parameter group.

build number:
2.6.0.v20100302-0630

steps to reproduce:
1. new a sample data source and data set.
2. new a cascading parameter, add cascading parameter group.
3. click "?"

expected result:
help content is shown.

actual result:
see the screenshot.

error log:
n/a
context help id "addeditcascadingparametersdialog_id"; reassign to doc team.
fixed in head
verified in build (2.6.0.v20100525-1139).