I'm using a matrix with 2 groups: ItemGroup and Item. InitialState of the Item group is collapsed.
Nothing special till now, but: What I want to do is show another value when item is collapsed or expanded.
So the value is not just the sum or avg of the item values below, but it is an AVG of another field that only may show up when Item is hidden.
+ A 10
- A A1 5
Anyone a idea on how to pull this off?
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