This is my last addon, for the development of video games:
With this addon work with a workflow similar to that used in 3d max but in a much simpler way.
It serves to model hard surfaces and exports the 3D models in high poly and low poly to substance painter.
Now Mychamfer Workflow is called Game Dev Tools.
I added polygon tools for poly reduction.
You can have a quick look here: https://youtu.be/eh1qbUJy5ik