add "Send to One Note" tool
It looks like One Note 2016 doesn't let you send the entire Powerpoint to One Note. You have to take a screen clipping. This is inconvenient and frustrating.
May Britt Da Silva commented
With any file you can just click print, and choose one note in stead of printer ;)
Use Insert File printout
Johnathan Chase commented
you can print to OneNote directly.