[Feature request] Custom control panels

Although many thinkgs could be done it would be fine to have several control panels configuration.

It would be like.

1) I create a group of clients and I call it servers, another home devices, etc...
2) Then in the control panel you have buttons, if you click on them all the stats are updated to macth only those clients.

It's a bad mockup but...

In the future more filters could be added like:

- Dates: last 30 min, 24hr....30 days, 90 days etc....
- Filter by domain/s

In addition an aditional statistic showing the most called ROOT domains would be nice.