What do you do if nobody answers?

Thank you for your comments.

I have experience using Microstation, which is a CAD package, very similar to Autocad; in fact the two products are direct competitors for the same market.  Since Autocad is a product of, oh, yeah, Adobe, I assumed that the Photoshop Elements routines for menu placement on the screen and for assigning their positions on monitors would be incorporated directly from Autocad.  I'd expect them to be standard across all similar Adobe products, if for no other reason that doing so would save Adobe the cost and effort of creating different routines for identical tasks in each product. It would be only good management.

I also assumed that Elements, and all similar products, would be readily configurable for two monitors. Working on only one monitor is a major pain in the patootie, just as it is in CAD software, where having two monitors makes everything so much easier that everybody would be doing it.  Silly me.  I found a few messages here and there about working with Elements on two monitors, but they were all for earlier versions of the software, and murky and unclear, all of which is why I posted the question.  I had the impression Adobe would step up if no one answers.  Thanks for straightening me out on that one, as well.

The user manual is murky and unclear, too, in many places, so much so that although I keep trying to RTFM I often leave it no wiser than when I started.  Adobe won't answer. Web searches produce nothing useful.  Therefore if a search on here produces no useful results, I'll figure that means that nodoby's doing it and it's not worth posting a question.

Thank you, MichelBParis, your answer isn't at all what I'd expected or hoped for, but it's very helpful.  I appreciate it.