Alrighty then, so I'm not just being blind and missing something obvious. That's good to know.
I didn't try any other airplanes or other missions. Right now I'm focusing on learning how to get the most out of the good ol' Hurricane.
It's tempting to start making a list of who can successfully select what options in what planes... but I guess there wouldn't be much point if it's going to be officially fixed soonish.
It just bugs me that the Hurricane's default loadout is so damn asymmetrical... pokes my brain right in the OCD, ya know?