I'm plat so I can usually get a decent seat in coach (like exit row aisle). Sometimes when I'm on the upgrade list, I get a bulkhead seat in First, as those are often the last to be filled. I'm tall, and there's not enough legroom for me in the bulkhead row of a 737. I particularly don't like the bulkhead window seats. I'd rather stay in my main cabin exit row seat than get an upgrade to a bulkhead, but I'd be glad to get any seat in rows 4-6.

I know that I can list my seating preference in my profile as "aisle." Is there a way to add "no bulkhead?"
Thanks