The logical coordinates (determined usually by the MODE specification) of a point clicked by the mouse in a Survo graphics window can be saved as a text file by giving a specification MOUSE=<pathname_of_file> in the GPLOT scheme. The information is saved in the text file as a single line of the form <# of window> <L or R> <x coordinate> <y coordinate>. The button pressed is indicated by L (left) or R (right). The MOUSE specification is intended for sucros working with graphics windows and enables mouse-controlled activities with Survo graphics. S = More information on GPLOT specifications