Guild Wars 2

Hi, everyone!

Currently I can sort players by their name, location, online status, level, crafting and achievements, but how did ArenaNet forget the most BASIC important part of any serious guild – LAST TIME ONLINE (or offline since)?
What bothers me the most is that Guild Wars 1 have this, as the only sorting method, and now GW2 doesn’t have it.

My guild is now at max size of 500 people. Many new players want to join, but how can I decide which members should be replaced for new ones if I can’t see their activity? I have around 30 players with unknown location and offline status. Does that mean they are the inactive ones? If so, for how long?

Could anyone help me with this? Is there a way to monitor member activity, when were they online last time?

At this time, lack of that column makes managing a large guild very difficult. Thanks.