Hmmmm...there actually isn't a "No Bone Category" under the drop down list when I use the grouping tool. If I try messing around and grouping some stuff, some areas show up under a No Bone Category, but it's not around the arms. When I attempt to re-bone it completely, the hip tends to split, and when I tried getting rid of the legs, Poser froze up when I tried going back into the Pose room.