Bold entrys indicate Rooms, Rooms are indexed by Upper Letters . If there is some one in the Room you can enter the Room. If there is no one in the Room you can Restart it
Plain Entrys are indexed by numbers, they describe topics that where discussed in the above Room , you can Read the discussions.
Every Topic may have one ore more Room Entrys displayed just beneath them , those Rooms where created to to discuss a sub Topic of the above displayed major Topic