@tBlue it's basically three triangle starts or ends next to each other and after you did the three ends you start with three starts again. For the indents at the side it's basically like one half triangle end and one half triangle start.
@tBlue hey! to knot the holes in the pattern, i suggest looking at EmmaWhite’s tutorial called “shaped holes photo tutorial.” the method is very similar to the regular shaped bracelets technique, where you do use triangle starts and ends. another option is to just leave the strings loose in the middle and on the sides. i would probably do that if i were knotting the pattern since the holes in the pattern are quite small. i hope that helps! 🙂