Left panels: Stars with radial velocities from the 5D samples (selected assuming V_los=0 km/s) and where they are distributed in IoM space using their RVs. We see that the 5D selected samples are more extended than the original definitions from Dodd et al. (2023) shown for GE, Thamnos, and Sequoia by the ellipsoids in the corresponding colours. Typically selecting stars to higher L_⊥. Stars with a star marker are highlighted since they have APOGEE abundances, and they are shown in the last two panels compared to the true 6D definitions. We see that the 5D selected samples follow the same distributions as the parent 6D sample in these spaces.