🚀 go-pugleaf

My ancient (well, almost my age, anyway) GraphOn-140 terminal greeted me
with a "Settings memory defaulted", or similar message, when I turned it on
today.  As it is merely a loan, I have no documentation.  Could someone help
me SAVE the settings after I set them?  It now defaults to a 4 lines/sec
smooth scroll with a key click (beep, really) and no key repeat.  Ouch.

Email might be better, since I'm sure no one else has this question.  (But
hoping someone has the answer...)

A related question:  Does anyway know what the makers of this generation of
terminals (looks like a vt100; has no fan) say about leaving them on.  I
could just leave it on for evermore, but I feel bad the thing is just
sitting there converting electricity into heat 24hrs a day, when I don't
use it much -- and I thought turning it off (at night at least) would make
it less likely to break (though it seems to have started anyway).

Thanks for any help.