I am using IGV v2.8.0 on mac. I wanted to display multiple similar data tracks in the .bed format. As have many of them, I would reduce the track height so that I can see all of them without scrolling the window. The default track height is 40. I can only increase the track height but not to reduce it. Do anybody have idea how should I reduce the track height?

(What I found interesting, if I display .wig files, there is no problem to reduce the track height)