I’m willing to attempt a convert on load, will probably need to dig more into the serialization to see how it all works before I can. If I’m able to solve that, the only other things that I haven’t done in this one is your SMC -> PMC and the PMC -> SMC as well as the slicer you did. Thinking about this, if all of those where to be converted to work with this, and the serialization problem fixed… There shouldn’t be a problem with a name change back to PMC for potentially merging with the engine and keeping the current name version separate as a plugin. They would probably have to keep 2 separate names though or things like installing from the MP/Github would get interesting when the project plugin name clashes with the engine plugin name. Unless either something changed or I did something wrong, last time it didn’t end so great.
Before going down that path though, do you see anything in there that you couldn’t accept? The RMC was a ground up rewrite, just matching/extending the current PMCs interface.