Scallop edge how to

Friends, the pattern (baby cardigan) calls for scallop edge and I really don’t understand the instructions, it is not working for me☹️ I am attaching a picture of the instructions, would someone decipher this for me? Much appreciated!!

Here’s a video for knitting into the stitch below. Your instructions are to perform the same technique but knit into a stitch 3 rows below the next one on the left needle. Pull the yarn to gather up all the sts in the column. Now bind off as usual for stitch over stitch bind off by lifting the 2nd stitch over and off the first stitch at the tip of the right hand needle and continue with the bind off of 5 more sts as usual.

Thank you so much Salmonmac for your detailed reply, much appreciated, will give it a try.
RoseD