metric computation table problem

[umbo1987]

Good morning, everyone! ! !
I learn to realize my first estimate of the quantities in my project in revit... placed an image of my problem: I do not understand why, although filtering by type category and material description, the program does not display the areas and volumes grouped for each layer of each package; if instead I insert as further field areas view me areas grouping them for progressive areas I think visualizing areas and volumes but getting a mileage... place the 2 pictures... .
Thank you very much in advance! ! !

 

[gfrank]

in addition to filters, which must be set by order of priority, you can operate groupings, and to these assign the totals to the fields of quantity