Repeating myself on the main question: "However, there are values that would be useful to see in general, from time to time, even when there's only a small change. For the sake of an example, let's see PCB Temperature. I'd like to see its value in every few minutes, regardless of changes."
In other words, there are I/Os whose values I'd like to have a constant supervision on even if they don't change. Setting Event Only to No would include values on records every second (triggered by position).