I'll second that. I used Kicad for one job, but to get a useable version with an undo function I had to download a daily snapshot version & compile it myself. The track width selection was a mess as well.
I don't want to insult the Kicad people, if I tried it for a bit longer it may have got easier, but for the moment I have gone back to geda gschem/pcb which some people hate as much as Kicad 