It'd be very useful to be able to change the thickness of writing after I have already written something. I often forget to change the thickness when I write and when I go back to edit. Just expanding the written text is NOT the same and makes it very difficult. Often, I have to delete the text and rewrite it, which wastes a lot of time. I have a friend who complains about it too, so it's good to know it's not just me. But please... I need this.