Board Thread:Support Requests - Getting Technical/@comment-4962933-20140707090303/@comment-5454372-20140707151030

A close look at the link 452 left earlier states that it is; I just tested it out to be sure and I can confirm that.

Personally, I wouldn't worry about vandals too much: I don't think they'd be interested in the infoboxes (if anything, they usually seem happier to delete whole pages or fill it with nonsense or expletives).

I'd worry more about whether the article is significantly impaired if the user doesn't make the correct choice between the two sets of parameters. If it wouldn't cripple the whole article, then a small note saying "please choose either A or B (case sensitive)" after the first 10 parameters would probably work quite well, if it's even needed. If failing to choose either set would cripple the article (though I'd find that unlikely off the top of my head), that would be a good place to use the "collapse the whole infobox" suggestion.