System parameters in SURVO.APU: 1 = ep4, llength, lname ('fixed' parameters for edit field control) 2 = ed1, ed2, ed3 (size of the edit field) 3 = er3, ec3 (size of the Survo main window) 4 = speclist, specmax (space for extra specifications) 5 = edisk, tempdisk, ...(paths for data and temporary files) 6 = qpath, sucropath, measures (various paths) 7 = eout (output file for results of Survo operations) 8 = printer, ... (printers and drivers) 9 = scale_check, accuracy, results (control of statistical operations) A = insert_type, ... (control of insert mode) B = videomode (logical size of graphics windows) C = autosave, autotrim (automatic saving, automatic text trimming) D = Macros E = Shadow characters F = alarm (setting alarm) G = start_sucro (sucro starting the Survo session) H = crt_palette (colors in screen graphics)