I am looking for a way to copy all keyframes from Action A to Action B with time offset X using python.
Here is a script that copies actionA (hardcoded to "CubeAction", change to suit) to actionB and adds a frame offset to each key.
import bpy # change how action is picked # actionA = bpy.context.object.animation_data.action actionA = bpy.data.actions.get("CubeAction") if actionA is not None: # copy the action actionB = actionA.copy() offset = 10 # frames # iter thru fcurves and move keyframes by offset for fc in actionB.fcurves: for kf in fc.keyframe_points: kf.co.x += offset
Note this can also be done pretty simply in the NLA, by moving an action strip to the desired frame start. This way you can keep all your actions as starting at frame 1.