Bend Face is a simple tool for bending your selected face easily.
It use the edge of selection boundary as the rotation axis, then rotate your selected faces.
It is very simple to use, and no need to orient your view or anything else.
Comparing to traditional method in blender (move 3d cursor to selected edge, change pivot mode, align view, rotate, change back the mode, …) , this tool provide a easy way.
Also this tool has another mode, it allow you to use an specific edge for rotation axis.
It allows you to doing posing for parts quick and easily.
This tool is available on gumroad :