Rotating beacons on the POSKY 757's.....

I use PIC with Tero's latest fde's for the P&W (I use on my UAL) and the RR (I use for AAL). On the American 757, the top and bottom rotating beacons (red) flash in sync, on the UAL 757 they flash independant of each other. I know how to add and move lights around on a plane, but how to I change the flashing sequence for the UAL to be like the AAL plane - in sync with each other? Is there a way?Thanks for any info passed this way! :)p.s. can I also make strobes (wings/white) flash in sync instead of independant, that is really bothering me as well..??Neil