Map of the stellar positions (top), position-velocity plots along the Galactic longitude l for the PM along l (second panel), along b (third panel), along the line of sight (fourth panel), and along the stellar metallicity [M/H]. The colour-coding is from the 50th percentile realisation of the two-population model and is shown by the colour bar on the top. Pink denotes a high probability to be a high [M/H] star, cyan shows a low [M/H] star, and the black plus shows a background star. The orange circles denote stars with a population membership probability ${\mathrm{P}}_i^k<0.5$.