I have been looking for this everywhere! Thanks :)

I was about to give up after coming so far. My project has been sitting there and the pattern offers no clear instruction. Thanks so much this is what i needed.

I'm knitting a simple stst cardigan - the back is done - and now I want to knit the front. My button bands never matched up well when I pick them up - so wanted to try this technique but i can't quite follow this short video. I'm not steeking but knitting the cardi front in 2 pieces...I'll try to steek another time :) Do you have a bit more explanation of this technique - and would I still need to CO those extra stitches. Was really hoping to CO today. thanks