YSO distribution and cluster identification. Figures are: (a) the YSO spatial distribution (black dots), (b) the 2D YSO clustering identification (colored dots), and (c) the clustered stars from Gaia information (in red) overplotted on the 2D YSO groups (black dots). Each group is labeled as in Table 4. NGC 6357 (dashed double dotted line), NGC 6334 (short dashed line), and GM1-24 (solid line) regions are delineated on every panel.