First, THANK YOU for adding LFG functionality! It is sorely needed. A few suggestions on how to improve it though:

1). Add an "All" option to the Classes menu.

2). Add "All" or "Any" to the Area menu and get rid of "None".

3). Add a search field to filter by Class Level.

4). Add a function to do all of these searches by text command.

Add these things, tweak the UI and the menu input speed and you'll have a darn near perfect flag/seek system. And again, thanks for the Seek Invite option!