Pretty As A Peacock Shawl

I’m working Chart B of Pretty as a Peacock, but I know I’ll hit the point where it wants me to increase 16 stitches into Charts C, E, and G one day or another. It says to k1 p1 (knit 1 purl 1) into the double yarn over 8 times, but how does one do that?

This video shows how to work a K1,P1,K1 increase into a double YO
Hope this helps