Tie the cord to the garment, through the starting eyelet.
Once you have laced down the garment, thread the cord back through the opposite eyelet.
Slip the cord under the bottom rung of the lacing.Pick up the bottom loop and pull the upper loop through it.Pull it tight to make a slip knot! For extra security make another slip knot on top of it.
Thanks! I’ve spent a long time trying to figure this out with no real success.