¹³CO(2−1) M₀ (left) and M₁ (right) maps of an example source, G345.49+0.3. In both maps, the integrated intensities are overlaid as contours with levels ranging from 40% to 90% in steps of 10% of the largest integrated intensity. The 80″ × 80″ coverages of the ¹³CO (6−5) data are outlined as dashed red boxes, while the 2′ × 2′ regions where we extracted clump-scale kinematics are indicated by solid red boxes. At the left bottom corner of each map, the FWHM of the telescope beam is shown by a hatched circle.