Name of source list dataset:table. Name of column from which to get RA. Name of column from which to get declination. Units of the RA and dec columns. Source selection expression. Yes => truncate number of sources to --ncut. Expression controlling how the source list is sorted before truncation. Maximum number of sources. ncut in [0:] Expression that determines the radius of the source circle. Style of calculating source circle radii. Whether to add source labels. Style for setting source labels. Method of sorting to derive integer source labels. Column expression to use for ordering source label integers. Column (expression) to use for source labels. Colour to plot source circles and labels. Shape to plot source regions. Output mode. Names of extra columns to add to gaia files. Whether to specify just the filename prefix or the whole filename. First part of the name of the output text file. Name of the output text file.