Phase-space vectors of the seven clusters analysed in this work in a 3D Cartesian system centred at the SMC as described in the text. Arrows are the velocities relative to the SMC mean velocity. Colours and symbols are the same as in Fig. 2. The average velocity of the five Bridge clusters is shown in dark red. The black arrows are a reference scale representing 10 km s⁻¹. A movie is available online.