For your first request, I assume you're talking about IK or "Inverse Kinematics". As of now, Anim8or has Forward Kinematics, or FK. Forward kinematics is where you select a bone then rotate it as you desire. Ik is where you can grab something like a wrist bone, then move the wrist, and the program bends the elbow for you. Steve has worked on an IK system before, that's why you'll see an IK button in sequence mode. This button is grayed out though because he never finished. I can only assume that he still has IK near the top of his priorities, and I completely agree with you in your desire for this feature, as animation would then be thousands times simpler.
For adding bones, I can agree with you there as well, though it could just be nice if there were something as simple as being able to hold "shift" and have the new bone tool still selected. Rotation would be nice as well though. As for now, perhaps it's best to just use the shortcut "shift + n" to use the new bone tool.
