I love digital notes with Goodnotes. But when you take notes on paper the sheet usually has lines (ruled) or a grid (squared) that are a fixed scale. I always have issues finding the right scale on a digital page as long as I cannot set a value for it. So I ended up taping in the side of the iPad screen a piece of lined sheet so that I zoom the digital sheet for the lines to match the paper lines. That way I have constant scale and I am not always trying to adjust my writing size to whatever zoom ratio I have. Setting a number for the zoom value would be a tremendous help!