I’m not too sure what the best terminology is to explain what I want to achieve, but consider following chart

Here as month progresses, data is likely to stay within that 40 – 60 range, thus making space below it obsolete. But I’d still like to start chart from 0. Is there a way to somehow progressively “squish” each sector down towards the 0 so that 60 – 40 area becomes more expanded and makes line graph occupy more space. i.e settings chart spacing to non-linear somehow?