Grouped supernovae: number of association members (top row), fraction of supernova exploding within groups (second row), activity time (third row), and extend of groups (fourth row) for F3000HD and MW3000HD for t = 2450–2550 Myr. Vertical lines indicate median values. Faint lines indicate distributions and medians for a min_cluster_size of 3 (dashed) and 7 (dotted). Corresponding median values are given in brackets.