So I have this robot, with legs that needs to break apart and off the hip-bone.

Instead of using the original animated legs, I copied and renamed them and put them under the hip_bone separately . That means they share image with the actual legs but are not linked to each other.

It should then be an easy matter of turning visibility on and off at the right keyframe, but dear Lord, that is IMPOSSIBLE. I got no control which is on and off. It seems to live a life of it's own, even with Autokey on. Why are they slots sharing visibility even they are named differently?

Can someone please tell how this works or show me the youtube where it's explained?

And no I can't show you, since it's company project, not my own.