Fig. 4
From: JBrowse: a dynamic web platform for genome visualization and analysis
JBrowse “combination track” workflow. Combination tracks are created via the Track menu (a), presenting an empty track as a drop target (b). Tracks can then be dragged onto the combination track (c). The second and subsequent tracks bring up a combination dialog (d), with options for set union, intersection, and difference. The results of the set operation are shown in the combination track (e)