Scrolling while using a stylus / pen

I'd like to be able to scroll through a PDF using the embedded stylus in my Lenovo X1 Yoga. Currently, when I touch the stylus to the PDF, it automatically draws in red ink. I'd like to be able to scroll through the PDF using the stylus by selecting the "hand" tool, and only markup the PDF with a red pen when I select the "Comment" feature. Is there any way to do this? Currently, I'm only able to scroll using the touch of my finger, which dirties my screen. Thanks!