Yes! I have try it yesterday and without help/tutorial/autostart i have settled to run the engines and have flown a airport round.
Aircraft is from FGaddon.
EDIT:
here is a startup tut 4 u
1 ) switch on the battery
2 ) start the APU (the knob will automaticaly jump back to 'ON' and the light in the yellow circle will lit)
3 ) open the bleed air from the APU
4 ) turn on the generator from the APU
5 ) turn on the fuel pump for engine 2
6 ) spool up engine 2 (open the cut-off valve of engine 2 behind the thrust lever)
7 ) turn on the fuel pump for engine 1
8 ) spool up engine 1 (open the cut-off valve of engine 1 behind the thrust lever)
If both engines running fine:
activate the hydraulic systems, alternators, bleed air and packs of both engines
If all work nice:
deactivate the generator and bleed air of APU
shut off APU
DONE