Thanks GoAmtrak. I should update my profile as I lost 1K status as I've been up and down the East Coast these days on Amtrak. But it looks like air travel is going to start up again.
I figured that the United Red Carpet Clubs all have the same computer software system that will allow the swipe of the Select Plus card. But if they don't, then I can't imagine how to explain how a "train" card gets you access to a plane lounge.
