Re: DVD studio pro Subtitles for buttons

I'm not quite sure I understood your situation. But I think you can do a few things.
First, of course, have each subtitle in a different track, so the button that targets the angle also targets the appropiate subtitle. That should do it.
I don't understand, though, why your buttons aren't working. How is your menu setup? An angle menu where the viewer selects the angle they want to see?