I love the pen tool in Goodnotes! But I want more custom pens to chose from on the fly. Currently, only the zoom window gives me the choice of three colors. Why can't we have this in the main toolbar at the top? Also, I'd like to set different thicknesses for my customs pens so I can switch between a fine blue pen and a thick red pen with one tap. This would speed up my grading a lot! Thanks!