Redout - you used to be able to combine the two a while back but that has now changed. Partly as a result of incidents where EFATO on twins caused fatal accidents. It was found that the PIC had no understanding of VYSE or VMCA and simply lost control by not REDUCING throttle below VMCA. You now have to do a seperate VFR rating with all the theory and the exam (or combine it with CPL).