Skymaps of all point sources with measured proper motions from Gaia and G <  20 mag. Left panel: full sample of quasars, which are colour-coded by redshift; different symbols are used to illustrate quasars that have been found in the this work (filled circles) and previously known quasars (square symbols). Right panel: all point sources (also with significant proper motions) as small black symbols, and the zero-proper-motion stars are marked with a colour-code reflecting their stellar type and sub-class.