It would be very helpfull if the groupfilter comes with de option to place the different filters among each other, like with the 'normal' filter. Now you have to apply each different step.
![Group filter](/legacyfs/online/454002_group_filter.png)
With the format like the normal filter, it's easyer to filter on more attributes at the same time. see image below.
![normal filter](/legacyfs/online/454004_filter_2.png)