Minimum flight crew consists of one pilot who shall operate helicopter from right crew seat.
Left crew seat may be used for an additional pilot when approved dual controls are installed.
The aircraft I fly is a certified for single pilot operation. I've demonstrated on countless flight tests the ability to safely fly the arcraft and watch for traffic. I ask my passengers to scan fortraffic when appropriate. I don't ask for their help on start-up, or othet checkists. Allowing the passengers to become distractions is dangerous. The Manufacturer and FAA doensn't intend for passengers to "act" as psuedo crewmwmbers.