Kangaroo Select Edge
In this Grasshopper kangaroo example file you can learn how to use the Leopard plugin to select a mesh edge easily in Rhino and then manipulate it in Grasshopper.
Kangaroo Vertices
In this grasshopper kangaroo example file, you can design a parametric tensile structure with Kangaroo 2 and then use the Leopard Plugin to have more control over the anchor points.