You cannot create any other personal bot for your room at the moment. You can create a whole range of bot shells, but those are only for the lab
I was also wondering this. Would be a cool thing to add in a future update! I'd really like some scenes with the infiltrator bot
I actually have that feature in my list, but have postponed it for a while now because it is not directly related to any story element. I even made the infiltrator bought variation for the captains quarters...