Question is unclear, since a moderator can affect already three different paths or any combination thereof in a simple moderated mediation model. Additionally, Hayes does not have a specific number for every possible combination and I would not expect that your specific sounding model is included. But you can define any model you like within PROCESS, but you have to define specific matrices via the syntax. I would suggest to read the book, which you probably should have done in the first place, since everything is presented there quite comprehensively. The appendix explains how to use the matrices for the specific paths.