@RobertL in one of the post @kevinm said
In this post Organizing the Narrative Report - #10 by thejerrybryan
theJerryBryan explains it more but basically when you add a marriage of say Aug 15 1982 go down to the sort date and add a -1 so that the sort date says Aug 15 1982-1.
then when you add the date of Aug 15 1982 to the alternate name, in the sort date put Aug 15 1982-2 and they say it will put it in the order you want–same should work for primary and birth…