ED-2 in IoM space. Top: L_z vs. E_tot showing GCs (circles) coloured by their orbital eccentricity. ED-2 is shown as dark blue circles, while the squares show known retrograde streams (see the legend; Bonaca et al. 2021). Bottom: same as above, but for L_z vs. L_⊥. Additionally, we show the distribution of L_⊥ as a violin plot (shaded regions), estimated from the orbits of NGC 3201, NGC 6101, and ED-2. As a comparison, we also show the original ED-2 members identified by Dodd et al. (2023; orange circles) overlaid on our extended sample (see Sect. 2 and Fig. 2).