Fig. 2

PastView user’s interface, « stand-alone » module. (a) the PastView interface is composed of multiple maps, where each map is subdivided into (a1) a main « tree view » and (a2), one or several secondary panels. (b) the controls for the management of maps and panels. (c) the controls for the PastView analysis are gathered into five toolboxes, following the five steps of the problem solving process: input/output (loading files, output graphics), tree and annotation editing (annotation color settings, tree rooting, swapping, etc.), compute and display ancestral annotations, analyses of transitions and comparative analyses