Each run has one power opening per seat. From there, you should hook your power strip into the provided opening and you are good to go. We have staff to supervise the power connections and hook up to help ensure everything goes smoothly.
Talking about breakers at the seat level is just obfuscation. We work with the electricians on the layout and drop patterns to make sure each run is set to provide ample power per seat with plenty for your PC and monitor.