Need side lean animation

I am trying to add side lean for fps character shooter.
-Searched for an animation but haven't found one.
-Unable to import animations.
-IKAnchor has only 5 bones you can move.
-Animation scripts made by others just move the separate objects and not the skeletal mesh bones.

Any solutions?
I am thinking of just rotating the pelvis for client only, but this way it won't sync/show to other players that someone is leaning.
I might have a solution will give that a try. I want to move the pelvis and then move the legs. If I do the legs in 1 frame it should make a fake lean.