Summary of the localised velocity perturbations detected by our clustering algorithm in the disc of HD 163296 in ¹²CO and ¹³CO velocities, using DSHARP and MAPS data. Localised red and blue contours highlight the morphology of the perturbations detected in ¹²CO, P94 and P261, whereas green and purple contours outline the localised signature detected in ¹³CO, P81, closely overlapping with the P94 signal. The green crosses mark the inferred location of the planet candidates linked to the aforementioned perturbations. Deep blue colours in the background highlight the location of ¹²CO line width minima which are co-spatial with positive gradients of azimuthal velocity flows probing gas surface density gaps.