How to pass the cloned-object from one rule to another, and send the modified object to target Process or Operation in Rule Editor?

Each DTL calls “ConstructClone” to make a copy of the message before making any changes to it. There will be hundreds of cloned-objects in case of hundreds of DTLs

It is expected to run the rules chain by using Rule Editor without DTL, namely against a SINGLE cloned-object (for example HL7 2.3, ORU_R01) with a FunctionSet in case of hundreds or thousand of rules under same protocol

Question is how to pass the cloned-object from one rule 1 to rule 2, and send the modified object to target Process or Operation in Rule Editor?