btnx-config is a configuration tool for btnx (Button Extension). It allows the user to send keyboard combinations or execute commands with mouse buttons. btnx-config provides mouse and button detection, and an easy way to configure btnx's behavior. See https://github.com/cdobrich/btnx/ for btnx.
To avoid possibly problems, Configuration Names should contain no space (and probably no special symbols). The use of underscores is fine. This used to not be a problem, but recently I've noticed (in Fedora 21) btnx-config barfs if you try to feed it a file that has spaces in the name. Will look into fixing this in the long term.
btnx and btnx-config was originally written by Olli Salonen. However he has ceased development of the code and one of the repositories is lost. Afraid the code might be totally lost if it is not hosted somewhere, I acquired his blessing to move the project here and maintain it. (Meaning this isn't a fork.) It is now being maintained (albeit limitedly at the moment), particularly for major bugs.
GNU GPL v2
C