reaction manager with multiple objects

is there any way to apply the same reaction manager command to many objects at once? basically i have a biped walk cycle, and i am trying to make a floor for it. i have a long shallow box which has been broken up using the vorofrag script, and will move backwards in time with the walk, and each fragment should shrink and disappear as it drops away behind, as well as scale up as it moves up to create the path in front. think of a treadmill but it fades in/out before and after the part that's walked on.

so i thought the reaction manager would be the way to go with this, have the object its own slave and change the scale depending on the z axis, but i can only apply it to one at a time. if i group them together all the fragments scale down at the same time, which is not what i want. there are hundreds of fragments of the ground box so surely there must be a way to do this without having to apply each one individually?

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.