 So you want to uncrease the world, not a problem, uncreases the literal opposite of crease. All sides means it uncreases all types of crease lines in your target, long sides means it uncreases all the horizontal creases, and short sides means it increases all the vertical creases. All faces literally targets all faces of the target. Polygroup border only increases the edges that are on the border of the polygroup island, and polygroup inner only increases edges that are on the inside of the polygroup island. All transitions mean it won't discriminate creases based on their angles. Shallow means it won't uncrease any edge with an angle greater than this value. So this is a 90 degree angle, which is greater than the value we have set, which is 80. So when we click on the blue polygroup, all decreases except these will disappear. Sharp transition is the opposite, only angles with a value greater than this number will be uncreased. So if this is edge is 70, it means the only creases that are bigger than 70 degrees will be uncreased. And since these edges are 90 degrees, if we left click, they will be the only edges that get uncreased. If target is set to something like Flat Island, meaning all faces that are parallel to the one we clicked, all targets means every crease inside the target will be uncreased. Outer targets means that only the creases on the edge of the target get uncreased. And inner means every crease except the borders get uncreased. If you have an open hole, all the edges means every crease, regardless of whether it borders the hole or not get uncreased. If it's set to outer edges, only the creases bordering the hole will get uncreased. If it's set to inner edge, only creases not bordering the hole will get uncreased.