I’m working in the round on dpn for the first time (thanks to your video, Amy!) making wristers (fingerless gloves). I’m at the stage where I have to make the thumb hole and it says in the pattern to “remove marker and work in rows from this point” after about 8 rounds. How do I work in rows on dpn? I’m holding my stitches with 3 needles and knitting onto a fourth.