Zend certified PHP/Magento developer

In a pivot table, how to apply conditional formatting by label instead of by group

In a pivot table I can easily apply a conditional formatting to a group of value rather than to a cell or to the whole field thank to the “Applies to” option of the “Edit rule” window. The objective here is to make the fill colour change at thresholds that are different for each item rows.

What I would like to do is to reduce the scope of the conditional formatting one more time, to drill down to the label itself.

In the mock-up pivot table below, I would like to apply C.F. to all Class foo rows rather than to the Class field. If the test is Cell value greater than 1, only [Type 1].[Class Foo]|[Category A] and [Type 2].[Class Foo]|[Category B] should change format.

Pivot talbe Quotas Column labels _________________
Row labels Category A Category B
Type 1 13 11
__Class Foo 3 1
__Class Bar 4 4
__Class FooBar 3 3
__Class BarFoo 3 3
Type 2 8 11
__Class Foo 1 5
__Class Bar 6 5
__Class FooBar 1 1

For now, I make this work with an AND() function and mixed references but I would like to use icon sets in the future.

The solution can use Power tools but not VBA. Any idea is welcomed, thank you.