Thanks for the illuminating explanation ... ockham There may be a way to make it easier but takes some effort to set up . First break up the different Poses for keyframing in ASL/BSL by body sections ... eg rUpperLimb, lUpperLimb, torso, head, hands, and so on ... Then pose and save into the Pose library ... using save subselection and selecting only the relevant body parts (save as single pose or animation). You'll have to devise a meaningful system of labelling ... eg lArmSwingFront, rArmThrustUp, lHandOpen and so on . The poses can be adjusted, eg to use pose/animation with interpolation or relabeled and evolved over time . At some point, python can be used to combine and sequence these actions by its loadlibrary function, and drive the animation thru a 'meaning' based interface . That would be comparatively easy as most of the work would have been done in the library .