The arms barely move in the current animation
Would be nice to have a longer one with more vertical movement on the arms

It is also bugged to trigger in scaffolding

Not a bug, intended. Anytime the player climbs the animation players. The bigger question is what would be the correct animation climbing a scaffolding where you just clip through floors^^.

Made all the parameters configurable, and made them by default a bit more logical for the first person mod + moving a tiny bit more.