The dialog appears when you click next to the Suppress Row Subtotal option in the Layout screen of the crosstab wizard. It helps you to control which subtotals of the rows in the crosstab will be suppressed, and which will be shown. See the dialog.
Same for all
If checked, the setting for the first subtotal will apply to all the subtotals.
Name
Lists the name of all subtotals of rows
Suppress
Specifies whether to suppress the selected subtotal by selecting true or false from the drop-down list. It could also be controlled by using a constant level formula.
OK
Applies the changes and closes the dialog.
Cancel
Does not retain any changes and closes the dialog.
Help
Displays this help document.