If it was coturnix eggs, I'd almost bet they would hatch if they were in the same room as the incubator...
I stagger hatch all the time in the sportsman (I need a HATCHER!!) by just setting the eggs in the paper trays and when it's time, cover the tray with a wire cover.. I leave the turner on and all.. just cover them to prevent little suicide jumpers playing bumper cars with the trays underneath on their way down to go splat when they hit the bottom.
I stagger hatch all the time in the sportsman (I need a HATCHER!!) by just setting the eggs in the paper trays and when it's time, cover the tray with a wire cover.. I leave the turner on and all.. just cover them to prevent little suicide jumpers playing bumper cars with the trays underneath on their way down to go splat when they hit the bottom.