'Fixed' parameters for edit field control: Max. number of columns on a line: Parameter `ep4' has several related tasks. When the user activates Survo operations, the system has to interpret edit lines consisting of several words separated by spaces and commas. Also when reading tables written in the edit field, the system must `see' the number of columns etc. In many cases `ep4' is the maximum number of such words or numbers on one edit line. In certain statistical analyses it will be the maximum number of variables. Example: ep4=300 . Max. lengths of lines and names: Parameter `llength' (=1000) corresponds to the maximum line length in edit fields. It cannot be changed by the user; the entire system must be recompiled if this parameter is changed. Parameter `lname' (=256) has also a fixed value in the same sense. It is the maximum allowed length of a pathname in Survo functions.