Hello, I'm back. About 95% ok.
First, the question of standby gauges not workig in the A321 default. It's not the case. They are working. I was looking at another aircraft that I thought was using the A321. In fact it was an addon panel that was identical with the A321 default panel but titled A330, and somehow these gauges weren't working on this. I won't be using that panel, so it's no longer an issue. Thanks again.
But Rick, so far as the A350 is concerned, I started again. Fresh aircraft, fresh installation, same problem. When I looked closer I found the issue. There was one too many steps in the installation - one sub-folder too many. Got rid of that and now works great. But, have to say, none of the A350 panels I've looked at sets my world alight.
So everything fine, now, and I've learned quite a bit along the way. Thank you.
Now, on to the next problems with the 350. And yes, there are 2, but I was previously chastised for putting too many problems in one post (point was taken), so starting another. Maybe you'd have alook, Rick.
Thanks, again.