An IR(R) holder who has gained 15 hrs instrument flight time as PIC on aeroplanes (not simply 'IFR time'), will
probably also have flown 15 hrs instrument flight instruction time for the IR(R).
All he/she then has to do, in order to convert to a full C-bM IR, is to:
- Pass the C-bM IR theoretical knowledge exams
- Fly an additional 10 hrs instrument flight instruction time at an ATO
- Pass the IR Skill Test
Other EASA Member States are quite at liberty to invent their own IR(R) under Art4(8) of the Aircrew Regulation. Who knows - if that idea took off then perhaps a pan-EASA Member State IR(R) might become available...