Ever since I moved to Gnome3 (at least), the login environment has stopped offering some of my window managers as options. A key examples is that I now have to login using TWM first and then select AwesomeWM from the menu it provides in order to get to Awesome. It should be possible to edit the list of window manager (any subset of the ones I have installed). Could someone point me in the right direction?
PS: This question was moved from stackoverflow.