Negative. Appendix 8 is only applicable for revalidations, as mentioned in the introduction of the overview in cap and easa fcl. For a IR/SE a seperate skill test is needed on a SE airplane. After passing the skill test and doing a prof check (when revalidating the me-ir) on a multi, cross crediting is provided to a single engine. At least this is how The Netherlands is issueing the licence: only mep/ir/me.