I think we should be able to edit Servos in CAS like any other Occult.
I really think the team needs to treat them as an Occult and not a Sim wearing a costume that has a few edits added in where they can die from exposure to water and they address their needs a bit differently. Here are a few other things that were not listed in regards to Servos:
When they cry, they both cry digital tears on their monitor face as well as watery tears like a human Sim.
They can use bubble blowers despite they don't have a mouth or even lungs for breathing.
Female Servos can breast feed infants.
Servos need to be Servos! The team was too lazy when it came to making them. 😞