again where do i find the levers or the centeconsole on which they are located, thanks

They're right between the capt and FO's seats....in VC. In 2D, they don't exist. If you're flying in 2D, you will have to switch temporarily to VC to adjust the trim etc.

Not sure what you mean but the fuel cutoff switches are just behind the throttles (not the red ones they're fire), the start switches however are on the lower overhead panel (two dials with GND,OFF,CON,FLT)

Since the title is "Engines" you must be talking about the "Thrust Levers"You will have to look down from the center display. Hit the "A" key or right click the mouse and select "Virtual Cockpit", then lower you view with your "HAT" switch or the "2" key on the number pad.