Face-on view of the plane at a PA of 134° and inclination of 64°, which contains the full-space motions of the 6.7 GHz CH₃OH maser cloudlets (see Fig. 3). The star at the center of the plot pinpoints the position of the HW2 object that powers the radio continuum jet perpendicular to the plane (Curiel et al. 2006). Gray circles mark different distances from the YSO position along this plane. Red dots mark the different locations of the CH₃OH maser cloudlets, and the black arrows trace their motions in the plane. Each maser cluster is labeled according to Fig. 2. The velocity scale is reported at the bottom right corner. For each cluster, we report the radial (V_r) and tangential (V_t) group velocities with respect to the YSO position (1σ uncertainty in brackets). The red circle, at a radius of about 300 au, marks the deconvolved size of the dust emission at 0.9 mm observed by Patel et al. (2005).