The airship...

I just got myself my own neat airship to fly around in, but I'm a little bit lost on how to controll it (guess I should have listened to that 'ol gambler better). I guess I know how to change altitude and steer and land and such, but wasn't there something about being able to shop on the airship and change party members? How do I do that?

Press triangle on the PSX version... and I believe it's Y on SNES (the menu button) and you'll switch from flight mode to 'run around on the airship' mode.

It was X, actually.

But yes, the menu button. Delightful thing, going amidships.