What is the Easiest way to Animate the rigid body properties of a large group of objects I would like to animate 500 or so shards to be "animated" rigid body at frame zero and "dynamic" at frame 550. Do I really have to set a keyframe for each individual object or is there a way to animate that rigid body property as a group?
The shards are in a group, but it appears that the rigid body for a group of objects can only be set, not animated. I've tried using an empty parent object to no avail.
[Select the rigid body object and copy their properties (except for animated).]


Select all rigid body object to be modified.
Alt click on the Animated property. This will change the property for all the selected object to the same value. Now all object have animated enabled.
Use this script to key the property on all of them.  




import bpy
sel = bpy.context.selected_objects
for ob in sel:
    ob.rigid_body.keyframe_insert(data_path="enabled") 
    ob.rigid_body.keyframe_insert(data_path="kinematic")


Now all objects are keyed.

To remove all Animated keys on a frame, execute the script but replace keyframe_insert with keyframe_delete.