I did it a few years ago with 9.#. I believe the process was something like this:
Open 'Sch A' and copy the circuit that you want to copy in Logic to a new page and save it as a new design (Sch B).
Use ECO's 'Compare designs' to generate a list of new new reference designators (you'll want that for later - List A).
Use the reuse in Layout to copy your circuit.
Use ECO's 'compare designs' against the original schematic (Sch A) and you'll get a list of the new reference designators in Layout (List B).
You'll need to manually match the ref des from List A and List B to generate an ECO file.
Use the ECO file you just generated to back annotate the refdes to Logic (Sch B).
Usually that's simpler than redrawing the schematic page!