You have a very tough situation. Not going to mince it, you wont get Blue Iris to exclude these headlights/blinkers alerts, and that's because you have a lot going against you in terms of intersection location. Not enough distance for object travels threshold or to use a longer make time just due to...

I didn't mean to belittle the product, it does an awful lot for the money, but was more asking is there any 'hidden' settings anywhere which I am missing. I am a bit late to the party here but, same as speedyrazor, product is great and I appreciate it very much. The quality difference is noticeable...