The Addin-User scripts just provide a list of morphs that will be 'available' in the character. You don't have to use them, and you can still save specific faces into the Face or Pose libraries. So I'm not sure what you mean exactly by "create a new character", but you can just zero whatever dials settings you have and start on a new face. The M1/2 version is nearing completion and will go into a wider beta test fairly shortly - hopefully in the next week or so. So it depends on how long the beta test period ends up being, but I expect it to be MUCH shorter than the V1/2 version, since all the generic glitches have been resolved. After that it depends on the time period between submitting it and having it show up in the store.