On the empty server list it would be neat if there was a drop down menu so players can specify a server group (sir please, luckylock, etc.).
Edit: maybe region too
Associating servers by their group would involve manual work of keeping track of what server belongs to who. I'm not down for that.
As for the region selection, there's a region field there and the data is from a geoip database. When you search, you can type "new york" to get New York servers for example.
You can also type in "sirplease" to get servers from SirPlease. The search is applied on all columns. It's up to the server owners to label their server name properly. As an example, I often type "sirplease eu" or even "se eu" to get server for an EU mix.