E.g. do statistics on columns with data from Partial sheet with group information specified.
To later modify the statistics to be based on another sheet e.g. All:
Choose Change parameter to open the dialog,
Specify input data range to be from new sheet
Click x above Group list box to remove the mismatched group info.
Click > in Group list box to pick group column from new sheet
This applies to other analysis dialog with such list view box like Group List box here.