I am doing about the simplest project I have ever done but I’m stuck on something. I’m making wrist warmers with circular needles. I want to have a thumb hole but I don’t know how to incorporate this. I cast on 30 stitches and I’m simply knitting around and around. I like the little rolled edge. I’m at about 5 inches long and now I want to add the thumb hole and then finish off about another 2-3 inches of knitting so they end up in the palm with another rolled edge. Can someone help me.