A long time ago when I was making New Vegas mods, someone told me I should change the interaction string of a load door in a truck that teleported to an identical truck, so it would say travel to instead, which would make a lot more sense, but I've googled that, and I have no idea how. Is that even possible? How do you change the "Open door" text on individual load doors to things like "Travel to"?

That string might be a game setting. That would be a global change though, and not a bad one in my opinion.......oh wait, non-loading doors

With DOOR Forms, you can't. You could fake it by using activators. It's a little bit of work though.

Yes, it's a game setting, sOpen=Open

Schlangster has added (and I think it will make it in to 1.6.7) RegisterForCrosshairRef, so maybe someone could do something with that.