3ds max ik/hi solvers problem

#1

im starting my first project in 3ds max and im trying to rig my model.
i tried using solvers on my biped but it does nothing…
when i click the limb for hi solvers, it only highlights that i clicked it… there’s no hidden line that i can drag with. am i missing something or should i do something i might have missed?
pls help me.