How much information is returning from each sensor? In other words, do you need to dedicate an entire display line to each sensor?
Well, at a push I could fit 2 per line, but I was going to display the location, actual and target temps so that would leave me with 3 characters for a location, but still only 8 items on a a 20x4 display so would still need to scroll in some fashion.
Have you considered using a Graphical LCD?
Yes, that might also be an option. I was trying to squeeze it on a 20x4 screen as most of the time it will just be looking after itself so doesn't really need much more than an 4 line LCD, although I'm beginning to wonder!
Will this interest you at all?
It certainly will! I'll be having a play with that.