"The constrictor knot is a way of making a secure, temporary or semi-permanent binding (it’s a good temporary whipping for a rope, closing a bag, or holding a punch of poles together.)" here's my video on this knot with a no-tangle paracord skein
This plugin allows the user to lay arbitrarily-oriented faces flat on the ground. This helps in producing cutouts, as CNC-prep etc. Use on any single face or multiple, coplanar faces. Works well in combination with an unfold tool to flatten shapes.