I think I've gotten somewhere acceptable.
Right now after pressing Func until HOLD (blinking) appears this is what the screen shows:
Tu 6:29 pm 76 (current reading in the room) with HOLD blinking - that time functions as a clock, and changes The example in the instruction page shows: Mo 11:00 pm 72 with HOLD blinking - so that's good - a match. However on the thermostat on the opposing wall that controls another two electrical baseboards in this room, the thermostat shows: Mon 1:00 pm blinking (and that time never changes) and 75 HOLD not blinking.
I just went downstairs and looked at two other thermostats like the two up here and I found that one is showing: Mon 100 pm blinking and 66 HOLD not blinking (again 1:00 pm never changes). Another one shows: Tu 6:30 pm not blinking with 61 (current temp in that room, altho' it's set lower) not blinking but HOLD is blinking - that one functions as a clock as the time changes. That is exactly what the one I'm working on is doing - the times are off by 12 minutes from the one upstairs to the one downstairs but that's probably because when I set the one downstairs up, that's the time it was. But my point is that both times change as the minutes go by, thus serving as a clock - the other two do not, but do allow me to control the heat.
My conclusion is that by hook or by crook, I have one upstairs and one downstairs operating as they should, with the clock keeping time. And I have one upstairs and one downstairs that with time as 1:00 pm that never changes. And I have 3 in the basement that operate with the clock not functioning, i.e. on 1:00 pm that never changes. They are slightly different models but seem to work as the others do, they just lack an ON/OFF toggle on the side to shut them down altogether.
I'm happy that I can now control the room temperature on all 7 thermostats with HOLD,
If I had more confidence in my handle on these thermostats (altho' it's better now than it was yesterday - this has been a learning process for me), I might try to get the ones where the clock isn't functioning up and running. And I might try to set a program up - I actually have one set up but I somehow screw up on the 'copying' feature each time. So, think I'll just re-attach the thermostat and it's plate back into the wall, screw it in and be done with it, at least for now.
I guess I can't be absolutely sure all is well with the thermostat in question until tomorrow morning. Tonight around 10:00, I'll turn the temp down to about 62. So when I get up in the morning, it should read close to that.
If you have anything else to suggest, I'd be happy to hear it. If not, thanks so much for taking so much time with me. It actually did force me to come to some kind of grips with this. At least I now know which ones are functioning as clocks and which are not - I just never noticed before the difference. All I concerned myself with was 'can I control the heat' because, honestly, I'd never look to a thermostat for the time. I also learned that just because the one in question didn't match the one on the opposing wall, didn't mean the one in question was wrong - in fact it seems it's OK. We'll see tomorrow morning.
I think if you don't mind, I will hold off on hitting the ACCEPT ANSWER. But it will be done tomorrow, if things go as I anticipate. Is that OK with you?
Thanks again, Janice