Next, in the replicator editor, choose the "Create Real Instances". This will create a duplicate replicator group. 

Then, I move the original replicator group well above the duplicated "real instances", turn off the physics of the source object and then disable visibility for both the source object and the original replicator group. (this option is in the Properties Panel)

The original Replicator group is moved above the new real-instances group so it won't interfere with the physics. It's hidden just so it won't be seen. But I don't delete it in case I need to go back and make changes that for a new real-instances group.