What is the best way to find R space (that is what I need for a GPU to clear at booking, right?) for UA flights. I have expert mode enabled to see the buckets but is there a way to search for R fares? The website won't let me search for them as a fare class. I'd rather not hunt and peck to find R fares.

Work is balking at biz seats. I worked my way up to 1K to get better chances and GPUs on overseas flights, but it ain't workin. Work says to take a day on either end to compensate for having to fly Y. I'd like to use that inherent flexibility to get higher hit rates on upgrades.

Would a travel agent be able to help with the search. I never feel like I'm in control when I work with them.