Can we build a custom HTML to open a popup?

And what if the attribute exists for both dimensions but in the first dimension is always populated with “1”?

What we need here I guess is a displayPopupDimension property in the case of stacked dimensions. Logically if not set this parameter should default to the inner most not outermost dimension. @atrajer is there anything undocumented to handle stacked dimensions with conditional display of popups? Or are we simply missing this capability?