I am trying to reduce the number of clicks technicians need to take when entering a new computer into our Assets object schema. I would like the technician to select only the model of computer and have the manufacturer and form factor fields automatically fill in since they can only be specific correct values. A ThinkPad T14 can only be a laptop made by Lenovo.
I'm trying to teach myself how this might work but feel lost in a sea of confusing documentation and search results.

