Interactive 3D scatter plot in Galactic Cartesian coordinates centered on Orion X. Shown is a snapshot at time = 0 Myr, positioned to represent the view from the Sun toward Orion. The interactive plot includes a timeslider for −7 to +7 Myr and shows the relative positions and motions of the Orion subregions over this time span, allowing a 3D investigation of the evolution of the region. Symbols and colors are the same as in Figs. 1, 7–9, and B.1. The figure includes the positions and motions of two young compact clusters, NGC 1977 and σ Ori, as further discussed in Sect. 5.3 and Appendix B. The interactive 3D version is available online.