Windows 10 = Double the productivity!

Is this a new Windows 10 superfeature? I just noticed that while drawing on my computer (Thinkpad Yoga), I can also push buttons with my right hand (The left hand being the hand that is drawing things). What? For shizzle! Actually, at fist I was confused as to why the palm rejection stopped working but then I noticed It was only not rejecting touches on the left side of the cursor. So I found the "use left hand" pen setting and viola! I can now draw and switch tools at the same time. I know, awesome, right? I've been wanting to be able to do that for years. Well.. I've been wanting to use a pen and a mouse at the same time for years. Now I don't have a mouse anymore so this is even better. If someone tells me it's not a Windows 10 thing and I could've been doing it the whole time I might feel some feelings. I don't know what kind of feelings, but there sure would be some.