Currently in Goodnotes 6 the only way that a generic curve can be approximated appears to be by a parabola, as a Maths major it would be helpful to be able to draw higher order curves (curves with more nodes) as the only way to do that currently appears to be by joining these basic curves which makes the overall curve appear to have kinks in it, adding an option to allow the user to control the number of nodes would be very helpful and appreciated.