Re entry stamp at BKK if using fast track immigration/security

I’ve been on elite visa for about 15 years but have just switched to marriage visa and will need to get a multiple re entry stamp. Everything I have seen online says you go down the escalater and there’s a desk before immigration, but I use the fast track immigration (elite visa before and fly business class now for access). Is there a way to get a re entry stamp or do I have to go upstairs to regular immigration/security?