Drika111.

Ani Offset is a Blender add-on that propagates pose adjustments across several keyframes at once. Working from the viewport, it lets you capture a pose, adjust it and apply the offset across a defined frame range.

Anim Offset Pro is a Blender add-on that propagates pose transformation offsets across selected keyframes in the active Action Slot. Built for rigged characters, it applies viewport pose edits over a defined frame range.