I am trying to create an extension for Team Explorer window in VS2017. I want to put another button on the changes screen, or even hook into the commit method, so that I can take the comments, and integrate with a Kanbanize board. It seems like it should be possible to but a button onto the Team Explorer window, but there doesn't seem to be any documentation I can find, or examples. I have looked around and can only really find this link below, which I tried but doesn't seem to work, but isn't really what I am wanting to do.
https://hamidshahid.blogspot.com/2017/09/extending-team-explorer-in-vs2017.html