I want to be able to put a line in a trend that represents a threshold. So for example,let's say I'm measuring battery voltage, I'd like to have a straight line that doesn't change at say 8 volts so that if you saw one of the pens dip below that you'd know you had a problem. I don't know much about graphs so my terminology is probably all wrong and for that I apologize.
In any case, I thought I could just use one of the pens and tie it to a constant and it would show a straight line all the time but that seems a little funky to me as it uses a pen for what is essentially a straight line.
I did search the forum but I didn't see anything on this particular issue, and I also didn't see anything in the Groov Build manual so I'm here asking for help.